CN111590202A - Marine sail laser welding equipment and control method thereof - Google Patents

Abstract

The invention belongs to the technical field of welding treatment, and particularly relates to a laser welding device for a marine sail and a control method thereof. The laser welding gun comprises a laser welding gun body, wherein a flow guide gun sleeve is sleeved at the front end of the laser welding gun body and comprises an inner sleeve, an outer sleeve, an inner sleeve and a flow guide cavity formed by the outer sleeve, a water inlet and a water outlet are formed in the outer sleeve, the water inlet is connected with a water inlet channel, and the water outlet is connected with a water outlet channel. The invention provides a marine sail laser welding device and a control method thereof, and the marine sail laser welding device is simple in structure, convenient to use, safe, reliable, wide in application temperature range, high in efficiency and suitable for severe environments.

Description

Marine sail laser welding equipment and control method thereof

Technical Field

The invention belongs to the technical field of welding treatment, and particularly relates to a laser welding device for a marine sail and a control method thereof.

Background

In the 21 st century, laser welding has been rapidly developed, and with the continuous expansion of applications, the laser welding technology needs to be developed and perfected to meet the practical requirements. The laser welding is as follows: the material is melted with a laser beam of lower power than in the cutting technique and becomes a continuous solid body after cooling. The laser welding has the advantages of concentrated energy density, high welding speed, small deformation of the welded piece, almost no connecting gap, more beautiful appearance after welding than the traditional welding, and insufficient penetration of the laser welding process, and is just suitable for the marine sail thin plate material. Present laser-beam welding machine all can weld the welding piece outside being in the workstation, but still have the limitation to the application scope of temperature, work efficiency under high temperature or low temperature environment is very low, when the welding, the partial radiation of laser can make welder partial temperature very high, there is the potential safety hazard when the staff carries out the work, be unfavorable for lasting work, simultaneously, along with welded going on, the welding can continuously heat up, can face the shut down when reacing a certain temperature, influence the welded going on, can not satisfy actual welded demand.

In conclusion, developing a welding device for a sail for a ship, which has a simple structure, is convenient to use, is safe and reliable, has a wide applicable temperature range and high efficiency, and is suitable for being applied to a ship under severe environments, is a technical problem to be solved urgently by researchers at present.

Disclosure of Invention

In view of the defects in the background art, the invention provides the laser welding equipment for the marine sail and the control method thereof, and the laser welding equipment for the marine sail is simple in structure, convenient to use, safe, reliable, wide in applicable temperature range, high in efficiency and suitable for severe environments.

In order to achieve the purpose, the technical scheme adopted by the invention is that the laser welding equipment for the sail of the ship comprises a laser welding gun, wherein a flow guide gun sleeve is added at the front end of the laser welding gun, the flow guide gun sleeve comprises an inner sleeve, an outer sleeve, a flow guide cavity formed by the inner sleeve and the outer sleeve, the outer sleeve is provided with a water inlet and a water outlet, the water inlet is connected with a water inlet channel, and the water outlet is connected with a water outlet channel.

Preferably, the flow guide gun sleeve is fixed 50mm behind a welding nozzle of the laser welding gun.

Preferably, the flow guide cavity is a spiral water channel arranged from the end far away from the welding mouth to the end close to the welding mouth.

Furthermore, the outer side of the inner sleeve of the flow guide gun sleeve is provided with a spiral groove, and the spiral groove and the inner side of the outer sleeve form a flow guide cavity.

Based on the technical scheme, in the process of external environment influence and welding, the compression type laser welding gun is stronger in environmental adaptability, the welding gun head is very close to the light-emitting position in the welding process, the front end part of the welding gun head can absorb laser radiation energy or reflection energy to cause the temperature of the welding gun head to be too high, at the moment, the hands of workers can be scalded, the welding processing effect can be influenced, the machine halt can be caused or optical components and parts can be damaged even in serious cases, the gun sleeve of the flow guide device is additionally arranged at the front end of the welding gun head in the compression type laser welding gun, and the size of the flow guide cavity can be changed by replacing gun sleeves of different specifications. Under the guide of the diversion cavity, water flows in from the water inlet channel at a certain speed, flows forwards along the inner sleeve of the gun sleeve, rotates for a circle around the gun sleeve, and then flows out from the water outlet channel to form stable water circulation, and heat at the front end is taken away through water cooling circulation, so that the temperature of the welding gun is reduced, the normal use of optical components in the compression type laser welding gun is effectively ensured, the normal operation of laser welding is ensured, and the occurrence of personnel accidents is avoided.

Furthermore, the flow guide gun sleeve further comprises a reducing sleeve, and the reducing sleeve is arranged on the inner side of the inner sleeve of the flow guide gun sleeve.

Further, the laser welding equipment for the marine sail further comprises a laser, a temperature sensor, a water cooling system, a heating system, a main cabinet and a control system; a laser, a temperature sensor, a control system, a water cooling system and a heating system are arranged in the main cabinet; the temperature sensor is arranged close to the laser, and is connected with the control system, and the control system is respectively connected with the water cooling system and the heating system.

Preferably, the water cooling system is an industrial water chiller, and a water tank of the industrial water chiller is connected to the water inlet channel; the heating system is an air electric heater.

Preferably, the temperature sensor is a thermocouple sensor.

Based on the technical scheme, the laser welding equipment with the environmental suitability for the marine sail can be used for laser welding on the marine sail, and can ensure that the temperature of a laser and a welding gun is within a safety value through a water cooling system and a heating system, ensure that the laser emits light normally, improve the welding quality and efficiency, avoid the damage of the laser and prolong the service life of the laser.

Furthermore, the front end of the laser welding gun comprises a ventilating welding nozzle, the air inlet pipe is provided with an air inlet channel, air is exhausted from a small hole in the front end of the welding nozzle, and the air control valve is locked on the air inlet pipe.

Based on above-mentioned technical scheme, because pressing mode laser welder is nearer from the weldment distance, welds the cigarette welding slag and blocks up the welding nozzle easily at the welded in-process, causes gaseous not to circulate, and welding front end thermal stability is relatively poor, the front end increases the welding nozzle of ventilating among the pressing mode laser welder, and welding nozzle front end aperture is the venthole, and at the during operation, the cover gas gets into pressing mode laser welder from the intake pipe of gas control valve locking in, flows from the venthole, and inside stable gas circulation passageway that forms has effectively protected welding cigarette welding slag to get into laser welder when the cooling.

On the other hand, the invention provides a control method of a laser welding device for a ship sail, which comprises the following specific steps,

the method comprises the following steps: a power switch is switched on by a power line of the host machine, and the temperature sensor is started;

step two: according to the influence of the external environment temperature, when the temperature sensor detects that the temperature of the laser is lower than or higher than a certain value, a signal is sent to the control system, then the control system sends an instruction to the water cooling system or the heating system, when the internal environment temperature of the main cabinet reaches above a standard temperature, the laser power-on button is pressed, and the power-on button indicator light is turned on;

step three: pressing a laser high-pressure button, enabling a laser to be ready, opening a gas control valve, regulating gas flow and regulating power;

step four: pressing a safety button, lighting a safety button lamp, pressing a guide light indicating button, aligning a gun head to a required welding position, conducting gas when a trigger is pulled, conducting a laser to emit light, and starting welding;

the fifth step: in the welding process, a flow guide gun sleeve at the front end of the laser welding gun performs water circulation, and water flows rotationally and circularly in the flow guide cavity.

Preferably, the standard temperature is 10-30 ℃.

Based on the technical scheme, a water cooling system or a heating system is added to the ship sail environment-adaptive laser welding equipment. The temperature of the external environment is high, the temperature of the laser is increased due to laser radiation heat in the welding process, at the moment, the temperature sensor detects that the temperature reaches a critical value, information is transmitted to the control system, the control system sends an instruction to the water cooling system, the water cooling system carries out refrigeration, the temperature of the laser is guaranteed to be within a safe temperature value, and therefore normal welding is guaranteed.

When external environment temperature crosses lowly, can influence the normal light-emitting of laser instrument, influence welded effect and efficiency then, for guaranteeing to weld the operation of safe efficient, need guarantee the temperature of laser instrument is under normal temperature range, at this moment heating module just need work among the heating system, at first temperature sensor detects the temperature and is less than a definite value, gives signal transmission control system, again by control system sends the instruction to heating system, heating module heats among the heating system guarantees the laser instrument heaies up, makes the temperature reach normal light-emitting scope.

The invention has the beneficial effects that: simple structure, convenient to use, it is safe high-efficient, satisfy the operating condition environmental requirement.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a compact laser welding gun according to the present invention;

fig. 3 is a cross-sectional view of a holster (diversion holster) of the diversion device of the present invention;

fig. 4 is a view of the holster (diversion holster) of the diversion device of the present invention;

FIG. 5 is a first control schematic of the present invention;

FIG. 6 is an enlarged view of a portion A of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 5 at B;

FIG. 8 is an enlarged view of a portion of FIG. 5 at C;

FIG. 9 is a second control schematic of the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 9 at C;

FIG. 11 is an enlarged view of a portion of FIG. 9 at D;

FIG. 12 is a third control schematic of the present invention;

FIG. 13 is an enlarged view of a portion of FIG. 12 at E;

FIG. 14 is an enlarged view of a portion of FIG. 12 at F;

FIG. 15 is a fourth control schematic of the present invention;

FIG. 16 is an enlarged view of a portion of FIG. 15 taken at G;

FIG. 17 is an enlarged view of a portion of FIG. 15 at H;

FIG. 18 is a fifth control schematic of the present invention;

FIG. 19 is a sixth control schematic of the present invention;

FIG. 20 is a seventh control schematic of the present invention;

FIG. 21 is an enlarged view of a portion of FIG. 20 taken at J;

FIG. 22 is an enlarged view of a portion of FIG. 20 at K;

FIG. 23 is an eighth control schematic of the present invention;

FIG. 24 is an enlarged view of a portion of FIG. 23 at L;

FIG. 25 is an enlarged view of a portion of FIG. 23 at M;

FIG. 26 is an enlarged view of a portion of FIG. 23 at M;

in the figure: 1. the laser, 2, water cooling system, 3, heating system, 4, control system, 5, main cabinet, 6, optic fibre, 7, pressing mode laser welding rifle, 14, temperature sensor, 8, rings, 9, water conservancy diversion gun case, 9.1, endotheca, 9.2, overcoat, 9.3, water conservancy diversion chamber, 9.4, inhalant canal, 9.5, play water passageway, 9.6, water inlet, 9.7, the delivery port, 10, welding mouth, 11, trigger, 12, power adjust knob, 13, safety button, 14, protection gas pipeline connects.

Detailed Description

Example 1

Marine sail laser welding equipment, it is including compressing tightly formula laser welding rifle 7, the front end that compresses tightly formula laser welding rifle 7 has added water conservancy diversion gun case 9, water conservancy diversion gun case 9 includes water conservancy diversion chamber 9.3 that endotheca 9.1, overcoat 9.2, endotheca 9.1 and overcoat 9.2 formed, and water inlet 9.6 and delivery port 9.7 are seted up to overcoat 9.2, inhalant canal 9.4 is connected to the water inlet, and exhalant canal 9.5 is connected to the delivery port.

Preferably, the flow guide gun sleeve 9 is fixed 50mm behind the welding nozzle of the compression type laser welding gun 7.

Preferably, the diversion cavity 9.3 is a spiral water channel arranged from the end far away from the welding mouth to the end close to the welding mouth.

Further, a spiral groove is formed in the outer side of an inner sleeve 9.1 of the flow guide gun sleeve 9, and a flow guide cavity 9.3 is formed between the spiral groove and the inner side of an outer sleeve 9.2.

Example 2

The laser welding equipment for the marine sail comprises a compression type laser welding gun 7, wherein a flow guide gun sleeve 9 is additionally arranged at the front end of the compression type laser welding gun 7, the flow guide gun sleeve 9 comprises a flow guide cavity 9.3 formed by an inner sleeve 9.1, an outer sleeve 9.2, an inner sleeve 9.1 and an outer sleeve 9.2, the outer sleeve 9.2 is provided with a water inlet 9.6 and a water outlet 9.7, the water inlet 9.6 is connected with a water inlet channel 9.4, and the water outlet 9.7 is connected with a water outlet channel 9.5.

Preferably, the flow guide gun sleeve 9 is fixed 50mm behind the welding nozzle of the compression type laser welding gun 7.

Preferably, the diversion cavity 9.3 is a spiral water channel arranged from the end far away from the welding mouth to the end close to the welding mouth.

Further, a spiral groove is formed in the outer side of an inner sleeve 9.1 of the flow guide gun sleeve 9, and a flow guide cavity 9.3 is formed between the spiral groove and the inner side of an outer sleeve 9.2.

Further, the laser welding equipment for the marine sail further comprises a laser 1, a temperature sensor 14, a water cooling system 2, a heating system 3, a main cabinet 5 and a control system 4; a laser 1, a temperature sensor 14, a control system 4, a water cooling system 2 and a heating system 3 are arranged in the main cabinet 5; the temperature sensor 14 is arranged close to the laser 1, the temperature sensor 14 is connected with the control system 4, and the control system 4 is respectively connected with the water cooling system 2 and the heating system 3.

Preferably, the water cooling system 2 is an industrial water chiller, and a water tank of the industrial water chiller is connected to a water inlet channel 9.4 of the flow guide gun sleeve 9 through a hose, a connector and the like; the heating system 3 is an electric air heater.

Furthermore, the model of the industrial water chiller can be selected from a specific electromechanical CW-5000/5200.

Preferably, the temperature sensor 14 is a thermocouple sensor.

Furthermore, the front end of the compression type laser welding gun 7 comprises a ventilating welding nozzle 10, the air inlet pipe is provided with an air inlet channel, air is exhausted from a small hole in the front end of the welding nozzle 10, and the air control valve is locked on the air inlet pipe.

On the other hand, the invention provides a control method of a laser welding device for a ship sail, which comprises the following specific steps,

the method comprises the following steps: a power switch is switched on by a power line of the host machine, and the temperature sensor is started;

step two: according to the influence of the external environment temperature, when the temperature sensor detects that the temperature of the laser is lower than or higher than a certain value, a signal is sent to the control system, then the control system sends an instruction to the water cooling system 2 or the heating system 3, when the internal environment temperature of the main cabinet 5 reaches above a standard temperature, the laser power-on button is pressed, and the power-on button indicator light is turned on;

step three: pressing a laser high-pressure button, enabling the laser 1 to be ready, opening a gas control valve, regulating the gas flow and regulating the power;

step four: pressing a safety button, lighting a safety button lamp, pressing a guide light indicating button, aligning a gun head to a required welding position, conducting gas when a trigger is pulled, conducting a laser 1 to emit light, and starting welding;

the fifth step: in the welding process, the flow guide gun sleeve 9 at the front end of the compression type laser welding gun 7 performs water circulation, and water flow rotates and circulates in the flow guide cavity.

Preferably, the standard temperature is 10-30 ℃.

Example 3

As shown in fig. 1, a laser welding device for a marine sail is a complete laser welding device with optical, mechanical and electrical integration, and includes a laser 1, a water cooling system 2, a heating system 3, a compact laser welding gun 7, a main cabinet 5, a control system 4, a flow guide gun sleeve 9, a welding nozzle 10, a trigger 11, and an air and water path system. A water cooling system and a heating system are added in the ship sail environment-adaptive laser welding equipment. The temperature of the laser 1 is high due to high external environment temperature and laser radiation heat in the welding process, at the moment, the temperature sensor detects that the temperature reaches a critical value, information is transmitted to the control system 4, the control system 4 sends an instruction to the water cooling system 2, the water cooling system 2 carries out refrigeration, the temperature of the laser 1 is guaranteed to be within a safe temperature value, and therefore normal welding is guaranteed.

When external environment temperature was crossed lowly, can influence laser instrument 1's normal light-emitting, then influence welded effect and efficiency, for guaranteeing to weld safe efficient and carry out the operation, need guarantee laser instrument 1's temperature is under normal temperature range, at this moment heating module just need work among the heating system 3, at first temperature sensor detects the temperature and is less than a definite value, with signal transmission for control system 4, by control system 4 sends the instruction again to heating system 3, heating module heats among the heating system 3 and guarantees laser instrument 1 heaies up, makes the temperature reach normal light-emitting scope.

Preferably, in the embodiment of the present invention, the flow guiding gun sleeve 9 with the flow guiding device added at the front end of the welding gun head of the compact laser welding gun 7 is arranged 50mm behind the welding nozzle 10, a cavity of the flow guiding device is formed in the flow guiding gun sleeve 9 to form a water circulation, and two sides of the flow guiding gun sleeve 9 include a water inlet channel and a water outlet channel to guide the water flow. In the external environmental influence and the welding process, the impact on the environmental adaptability of the compact laser welding gun 7 is greater, because the welding gun head is very close to the light-emitting position in the welding process, the front end part of the welding gun head can absorb laser radiation energy or reflection energy to cause the temperature of the welding gun head to be overhigh, the hands of workers can be scalded, the welding processing effect can be influenced, and the machine halt and even the damage to optical components can be caused in serious cases, the flow guide gun sleeve 9 of the flow guide device is added at the front end of the welding gun head in the compact laser welding gun 7 (the size of a flow guide cavity in the flow guide gun sleeve 9 can be changed according to the water flow), under the guide of the flow guide cavity, water flows in from the water inlet channel at a certain speed, flows forwards along an inner sleeve of the flow guide gun sleeve 9 and rotates around the flow guide gun sleeve 9 for a circle, then flows out from the water outlet channel to form stable water circulation, and the, the temperature of the welding gun is reduced, the normal use of optical components in the compression type laser welding gun 7 is effectively guaranteed, the normal operation of laser welding is guaranteed, and the occurrence of personnel accidents is avoided.

Preferably, in the embodiment of the invention, the front end of the compact laser welding gun 7 comprises a ventilated welding nozzle 10, the air inlet pipe is provided with an air inlet channel, air is exhausted from a small hole at the front end of the welding nozzle 10, and the air control valve is locked on the air inlet pipe. Because compact form laser welder 7 is nearer from the weldment distance, welds the cigarette welding slag and blocks up the welding mouth easily at the welded in-process, causes gaseous non-circulation, and welding front end thermal stability is relatively poor, front end increases the welding mouth 10 of ventilating among the compact form laser welder 7, and welding mouth front end aperture is the venthole, and at the during operation, the cover gas gets into compact form laser welder 7 from the intake pipe of gas control valve locking in, flows from the venthole, and inside forms stable gas circulation passageway, has effectively protected welding cigarette welding slag to get into in the laser welder when cooling down again.

The invention also provides an operation method of the marine sail environment-adaptive laser welding machine, which comprises the following steps:

the first step is as follows: when the power switch is switched on by the power line of the host machine, the power supply abnormality indicator lamp is not lighted, the equipment power indicator lamp is lighted, and the temperature sensor is started immediately.

The second step is that: according to the influence of the external environment temperature, when the temperature sensor detects that the temperature of the laser is lower than or higher than a certain value, the temperature sensor sends a signal to the control system 4, and then the control system 4 sends an instruction to the water cooling system or the heating system, so that when the internal environment temperature of the main cabinet reaches above 10-30 ℃, the laser power-on button is pressed, and the power-on button indicator lamp is turned on.

The third step: and pressing a laser high-pressure button, turning on a gas control valve when the laser is ready, adjusting the gas flow, and adjusting a power adjusting knob to a scale corresponding to the required power.

The fourth step: when the safety button is pressed down, the safety button lamp is lightened, the guiding and indicating light button is pressed down, the gun head is aligned to a required welding position, gas is conducted when the trigger is pulled, the laser is conducted to emit light, and welding is started (welding can be stopped when the trigger is loosened).

The fifth step: and in the welding process, a flow guide gun sleeve of a flow guide device at the front end of the welding head performs water circulation to guide the water to rotate and circulate in the cavity.

Compared with the prior art, the invention has the beneficial effects that: the laser welding machine for the ship sail environment adaptation type is simple in structure, convenient to use, safe and efficient, and meets the requirement of actual working condition environment.

The laser welding equipment with the environmental adaptability for the marine sail can be used for laser welding on the marine sail, and can ensure that the temperature of a laser and a welding gun is within a safety value through a water cooling system and a heating system, ensure the normal light emission of the laser, improve the welding quality and efficiency, avoid the damage of the laser and prolong the service life of the laser.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. Marine sail laser welding equipment, its characterized in that: the laser welding gun comprises a laser welding gun body, wherein a flow guide gun sleeve is sleeved at the front end of the laser welding gun body and comprises an inner sleeve, an outer sleeve, an inner sleeve and a flow guide cavity formed by the outer sleeve, a water inlet and a water outlet are formed in the outer sleeve, the water inlet is connected with a water inlet channel, and the water outlet is connected with a water outlet channel.

2. The laser welding apparatus for sails for boats as defined in claim 1, wherein: the diversion gun case is fixed 50mm behind the welding nozzle of the laser welding gun.

3. The laser welding apparatus for sails for boats as defined in claim 1, wherein: the flow guide cavity is a spiral water channel which is arranged from the end far away from the welding nozzle to the end close to the welding nozzle.

4. The laser welding apparatus for sails for boats as defined in claim 1, wherein: the outer side of the inner sleeve of the flow guide gun sleeve is provided with a spiral groove, and the spiral groove and the inner side of the outer sleeve form a flow guide cavity.

5. The laser welding apparatus for sails for boats as defined in claim 1, wherein: the flow guide gun sleeve further comprises a reducing sleeve, and the reducing sleeve is arranged on the inner side of the inner sleeve of the flow guide gun sleeve.

6. The laser welding apparatus for sails for boats as defined in claim 1, wherein: the laser welding equipment for the marine sail further comprises a laser, a temperature sensor, a water cooling system, a heating system, a main cabinet and a control system; a laser, a temperature sensor, a control system, a water cooling system and a heating system are arranged in the main cabinet; the temperature sensor is arranged close to the laser, and is connected with the control system, and the control system is respectively connected with the water cooling system and the heating system.

7. The laser welding apparatus for sails for boats as defined in claim 1, wherein: the water cooling system is an industrial water chiller, and a water tank of the industrial water chiller is connected to the water inlet channel; the heating system is an air electric heater.

8. The laser welding apparatus for sails for boats as defined in claim 1, wherein: the temperature sensor is a thermocouple sensor.

9. The control method of the marine sail laser welding equipment is characterized by comprising the following steps:

the method comprises the following steps: a power switch is switched on by a power line of the host machine, and the temperature sensor is started;

step two: according to the influence of the external environment temperature, when the temperature sensor detects that the temperature of the laser is lower than or higher than a certain value, a signal is sent to the control system, then the control system sends an instruction to the water cooling system or the heating system, when the internal environment temperature of the cabinet reaches above a standard temperature, the laser power-on button is pressed, and the power-on button indicator light is turned on;

step three: pressing a laser high-pressure button, enabling a laser to be ready, opening a gas control valve, regulating gas flow and regulating power;

step four: pressing a safety button, lighting a safety button lamp, pressing a guide light indicating button, aligning a gun head to a required welding position, conducting gas when a trigger is pulled, conducting a laser to emit light, and starting welding;

the fifth step: in the welding process, a flow guide gun sleeve at the front end of the laser welding gun performs water circulation, and water flows rotationally and circularly in the flow guide cavity.

10. The control method of the laser welding equipment for the marine sail according to claim 8, characterized in that: the standard temperature is 10-30 ℃.

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