CN218109665U

CN218109665U - Laser welding machine

Info

Publication number: CN218109665U
Application number: CN202220501423.1U
Authority: CN
Inventors: 邱胜蓝; 杨浩然; 程现炜; 李儒�
Original assignee: Sichuan Sichuang Laser Technology Co ltd
Current assignee: Sichuan Sichuang Laser Technology Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-12-23
Anticipated expiration: 2032-03-08

Abstract

The utility model discloses a laser welding machine, including laser instrument subassembly and temperature control system, laser instrument subassembly and temperature control system integration are in the organism, temperature control system includes compressor, condenser, cold drawing and expansion valve, compressor, condenser, cold drawing and expansion valve pass through the pipe connection in order to constitute the control by temperature change return circuit that supplies refrigerant circulation to flow, the source that generates heat of laser instrument subassembly is connected with cold drawing heat-conduction, and the refrigerant carries out the phase transition in the cold drawing in order to carry out the heat exchange with the source that generates heat. Laser-beam welding machine integrated as an organic whole with laser instrument subassembly and temperature control system, the source spare that generates heat of laser instrument subassembly is dispelled the heat by the refrigerant that takes place the phase transition, the radiating efficiency is high, effectual, simple structure, compactness occupy small, portable is good, response speed is fast, control accuracy is high, the temperature fluctuation is little.

Description

Laser welding machine

Technical Field

The utility model relates to a welding equipment technical field especially relates to a laser welding machine.

Background

The conventional handheld laser welding machine generally adopts an air cooling or water cooling heat dissipation mode, the air cooling heat dissipation efficiency is low, the handheld laser welding machine is generally suitable for laser welding machines with the power of less than 500W, and the laser welding machines with higher power generally adopt a water cooling system. The water tank, the water pump and the circulating pipeline of the traditional water cooling system have heavy weight and large volume, and the volume of the water cooling system is generally 0.5m ³ The portable water cooling system has the advantages that the weight is more than 80kg, the size and the weight of the laser welding machine are greatly increased, the portability of the laser welding machine is poor, the working principle of the water cooling system is that the heat of the laser welding machine is brought out by cooling water which circularly flows in a heat exchange mode, then the heat of the cooling water is discharged outwards in a heat exchange mode, the water cooling system detects the temperature change of the cooling water to start and stop refrigeration, the change speed of the cooling water is slow, the fluctuation range is large, the response speed of the water cooling system is slow, the control precision is low, the long-term and stable work of the laser welding machine is difficult to guarantee, the maintenance of the water cooling system is frequent, the cooling water needs to be replaced regularly, the workload and the cost are increased, the cooling water is easy to freeze in a low-temperature environment, pipelines and other equipment are damaged, and the maintenance and replacement cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve and the technical task that provides improve prior art, provide a laser-beam welding machine, solve among the prior art cooling system that traditional laser-beam welding machine adopted and lead to laser-beam welding machine bulky, heavy, the portability is poor, the problem that the cooling response speed is slow, control accuracy is low.

For solving the above technical problem, the technical scheme of the utility model is that:

the utility model provides a laser welding machine, includes laser instrument subassembly and temperature control system, and laser instrument subassembly and temperature control system integration are in the organism, temperature control system includes compressor, condenser, cold plate and expansion valve, compressor, condenser, cold plate and expansion valve pass through the tube coupling in order to constitute the control by temperature change return circuit that supplies refrigerant circulation to flow, the source spare that generates heat of laser instrument subassembly is connected with cold plate heat-conduction, and the refrigerant carries out the phase transition in the cold plate in order to carry out the heat exchange with the source spare that generates heat. Laser-beam welding machine be integrated as an organic whole with laser instrument subassembly and temperature control system, the heating source spare of laser instrument subassembly and the refrigerant that carries out the phase transition carry out the heat exchange, and heat exchange efficiency is high, and is effectual, replace the mode of traditional hydrologic cycle heat conduction, the utility model discloses a temperature control system simple structure, it is itself small, light in weight, the liquid refrigerant of low temperature low pressure flows in the runner of cold drawing in order to carry out the heat exchange with the heating source spare, become the gas of low temperature low pressure behind the liquid refrigerant heat absorption cooling effect of low temperature low pressure, the temperature of heating source spare is then effectively reduced, the gaseous refrigerant of low temperature low pressure then changes high-temperature highly compressed gas into through the compressor compression, the high-temperature highly compressed gas state refrigerant reentries the condenser, become the liquid of medium temperature high pressure after the condenser is exothermic, the liquid refrigerant of medium temperature high pressure becomes low temperature low pressure liquid refrigerant after passing through the expansion valve after, thereby the liquid refrigerant circulation of low temperature low pressure enters into the cold drawing in order to dispel the heat the heating source spare, compare with traditional water cooling system, the radiating efficiency is high, and the volume has been reduced to the weight of laser-beam welding machine, the convenience is improved, the flow, the convenience, flow the response speed is directly cooled down, the high precision, the high-temperature low-precision.

Furthermore, the temperature control system and the laser assembly share one controller, so that redundancy of multi-stage control is avoided, the integration level is improved, the overall size is reduced, and the cost is saved.

Furthermore, a sensor is arranged in the temperature control loop, the controller receives monitoring information obtained by monitoring of the sensor and compares the monitoring information with a set value to perform automatic control, automatic control is achieved, manual intervention is not needed, and the laser assembly can work under a stable temperature condition.

Further, the sensor includes one or more of a cold plate inlet temperature sensor arranged at a cold plate inlet, a cold plate temperature sensor arranged on a cold plate, a cold plate outlet temperature sensor arranged at a cold plate outlet, a low pressure sensor arranged at one side of a compressor inlet and arranged in a temperature control loop, a high pressure sensor arranged at one side of a compressor outlet and arranged in a temperature control loop, a suction temperature sensor arranged at a compressor inlet, an exhaust temperature sensor arranged at a compressor outlet, an ambient temperature sensor, and a condenser temperature sensor arranged on a condenser.

Furthermore, the condenser is also provided with a fan, and the fan accelerates the air flow to improve the heat exchange between the condenser and the outside, so that the heat dissipation efficiency is effectively improved.

The four-way valve is connected with the compressor, the condenser and the cold plate respectively to change the flowing direction of the refrigerant so as to switch between cooling and heating. The laser assembly is cooled when the working temperature of the laser assembly is too high, and the heating is carried out when the environmental temperature is too low, so that the laser assembly works at a proper temperature for a long time, the working stability is guaranteed, and the service life of the laser assembly is prolonged.

Further, be provided with the wind channel in the organism, at least one lateral wall in wind channel by the cold drawing constitutes, dispels the heat through the wind channel, and the produced heat conduction of source spare that generates heat of laser instrument subassembly is to the cold drawing, and the temperature of cold drawing is higher relatively, and the air current that passes through from the wind channel takes out the heat of cold drawing, improves the derived efficiency to the produced heat of source spare that generates heat, improves the radiating effect.

Further, the left and right sides of organism is provided with respectively and holds the storehouse, it is the cold drawing to hold one side at storehouse towards the organism middle part, and the cold drawing of the left and right sides and the panel around the organism enclose into the wind channel, improves compact structure nature when improving the radiating effect, reduces and occupies the volume, holds devices such as the storehouse internal storage laser instrument subassembly for the produced heat of laser instrument subassembly can dispel the heat through the wind channel, improves the radiating effect.

Further the condenser sets up the air outlet in wind channel, and the air current that passes through from the wind channel carries out the heat exchange with the condenser, improves the heat convection for high-temperature high-pressure gaseous state refrigerant can become the highly compressed liquid of medium temperature after the efficient is released heat, absorbs the outside discharge of the heat efficient that the source spare produced that generates heat with the refrigerant, ensures that the refrigerant can efficient circulative cooling, and then ensures that temperature control system can last cool down the cooling to the laser instrument subassembly.

Furthermore, the air channel is vertically arranged, the bottom side is an air inlet, the top side is an air outlet, the air outlet of the air channel is provided with a cooling fan, a lower air inlet and upper air exhaust air channel structure is adopted, hot air is lighter, the air channel structure can generate updraft, the cooling fan is utilized to improve air speed and direction stability, and the cooling effect is better.

Compared with the prior art, the utility model discloses the advantage lies in:

laser welding machine integrated as an organic whole with laser instrument subassembly and temperature control system, laser instrument subassembly generate heat the source spare and dispel the heat by the refrigerant that takes place the phase transition, the radiating efficiency is high, effectual, simple structure, compactness occupy small, the portability is good, response speed is fast, control accuracy is high, the temperature fluctuation is little.

Drawings

FIG. 1 is a schematic diagram of a temperature control system of the laser welding machine of the present invention;

FIG. 2 is a schematic view of the structure of the laser welding machine of the present invention;

FIG. 3 is a schematic structural diagram of the top side of the machine body of the laser welding machine of the present invention;

FIG. 4 is a schematic structural view of a fan installed on the top side of the laser welding machine body;

FIG. 5 is a schematic side view of the internal structure of the laser welding machine of the present invention;

fig. 6 is a schematic diagram of the bottom side structure of the laser welding machine body of the present invention.

In the figure:

the air conditioner comprises a compressor 1, a condenser 2, a cold plate 3, an expansion valve 4, a fan 5, a four-way valve 6, a controller 7, a heating source 8, a machine body 9, an air inlet 10, an air outlet 11 and an accommodating bin 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The embodiment of the utility model discloses a laser welding machine, compact structure occupies smallly, and the integrated level is high, and the radiating effect is efficient, and response speed is fast, and control accuracy is high, and the temperature fluctuation is little, can guarantee laser welding machine long-term stable work, maintains convenient, with low costs.

The utility model provides a laser welding machine, mainly includes laser instrument subassembly and temperature control system, and laser instrument subassembly and temperature control system integration are in organism 9, temperature control system includes compressor 1, condenser 2, cold drawing 3 and expansion valve 4, compressor 1, condenser 2, cold drawing 3 and expansion valve 4 pass through the pipe connection in order to constitute the temperature control loop who supplies refrigerant circulation flow, the heating source spare 8 and the 3 heat-conduction of cold drawing of laser instrument subassembly are connected, and the refrigerant carries out the phase transition in cold drawing 3 in order to carry out the heat exchange with heating source spare.

As shown in the schematic diagram of the temperature control system shown in fig. 1, a flow channel for a refrigerant to flow is formed in a cold plate 3, and a heating source 8 of a laser component is attached to the cold plate 3, so that the refrigerant exchanges heat with the heating source 8 at the cold plate 3, and the temperature control of the heating source 8 is realized; the condenser 2 is also provided with a fan 5, and the fan 5 is used for increasing air convection so that heat at the condenser 2 is efficiently dissipated outwards, thereby ensuring that a high-temperature and high-pressure gas refrigerant is changed into medium-temperature and high-pressure liquid after releasing heat at the condenser;

the temperature control loop is also provided with a four-way valve 6, the four-way valve 6 is respectively connected with the compressor 1, the condenser 2 and the cold plate 3, the four-way valve 6 is used for changing the flowing direction of the refrigerant to carry out the switching of refrigeration and heating, specifically, when the four-way valve 6 is not electrified, the low-temperature low-pressure liquid refrigerant flows in a flow channel of the cold plate to carry out heat exchange with the heating source component, the low-temperature low-pressure liquid refrigerant absorbs heat and discharges cold to become low-temperature low-pressure gas, the temperature of the heating source component is effectively reduced, the low-temperature low-pressure gaseous refrigerant is compressed by the compressor to be converted into high-temperature high-pressure gas, the high-temperature high-pressure gas refrigerant enters the condenser again to be converted into medium-temperature high-pressure liquid after the heat of the condenser releases heat, the medium-temperature high-pressure liquid refrigerant is converted into low-temperature low-pressure liquid after passing through the expansion valve, so that the low-temperature low-pressure liquid refrigerant circularly enters the cold plate to dissipate the heat of the heating source component, and the temperature control system is in the refrigeration state to effectively cool the heating source component of the laser assembly; when the four-way valve 6 is powered on, a piston in the four-way valve 6 moves, the communication state changes, a refrigerant is compressed by the compressor and converted into high-temperature and high-pressure gas, then the gas enters the cold plate, the heat exchange is carried out between the cold plate and a heating source part of the laser assembly, in other words, the refrigerant heats the heating source part of the laser assembly, the refrigerant turns into medium-temperature and high-pressure liquid after releasing heat, then the liquid turns into low-temperature and low-pressure liquid after passing through the expansion valve, the liquid enters the condenser to absorb heat and discharge the cold to turn into low-temperature and low-pressure gas, the refrigerant circulates back to the compressor and then continues to circulate, and at the moment, the temperature control system is in a heating state and effectively heats the heating source part of the laser assembly.

In order to ensure the high-efficient operation of the temperature control system and ensure the stability of the working temperature of the laser component, the temperature control system is provided with a controller 7, a sensor is arranged in a temperature control loop, the controller 7 receives monitoring information obtained by monitoring the sensor and compares the monitoring information with a set value to automatically control, and the temperature control system is adjusted in real time according to the temperature, the pressure and other conditions of the temperature control system, so that the working temperature of the laser component is ensured to be constant, meanwhile, the power of the temperature control system is adjusted flexibly, the working power consumption is reduced, and the energy is saved, the compressor 1 adopts a variable frequency compressor, so that the power of heat exchange can be adjusted along with the actual condition, and the temperature fluctuation caused by frequent starting and stopping of the compressor can be avoided. Specifically, the sensors include a cold plate inlet temperature sensor arranged at a cold plate inlet, a cold plate temperature sensor arranged on a cold plate, a cold plate outlet temperature sensor arranged at a cold plate outlet, a low air pressure sensor arranged at one side of a compressor inlet and arranged in a temperature control loop, a high air pressure sensor arranged at one side of a compressor outlet and arranged in the temperature control loop, an air suction temperature sensor arranged at the compressor inlet, an exhaust temperature sensor arranged at the compressor outlet, an environment temperature sensor and a condenser temperature sensor arranged on a condenser, the controller 7 receives monitoring information monitored by the sensors in real time to realize constant temperature control, the expansion valve 4 adopts an electronic expansion valve, the controller 7 receives detection information of the cold plate inlet temperature sensor and the cold plate outlet temperature sensor, controls the opening degree of the electronic expansion valve according to the temperature difference to realize the control of refrigerant flow, the controller 7 receives the monitoring information of the environment temperature sensor to control the power of the fan, controls the control of cooling air volume, the controller 7 receives a control signal to control the on-off of the four-way valve 6 to realize the switching between the refrigeration and heating modes, the controller 7 receives the monitoring information of the low air pressure sensor, the low air suction temperature sensor and the monitoring information of the low air pressure sensor to compare the exhaust temperature sensor to avoid the emergency maintenance control system to reduce the emergency maintenance cost.

Further, in this embodiment, temperature control system and laser subassembly share a controller 7, controller 7 is controlled temperature control system and laser subassembly in coordination, control is automatic and intelligent more, make temperature control system can carry out the adaptability along with the behavior of laser subassembly and adjust, ensure that the laser subassembly is in invariable operating temperature, reduce temperature control system's work power consumption simultaneously, the redundancy of controlling at multiple levels of traditional handheld welding machine has been avoided, the volume is saved and the cost, the compactness of laser welding machine is improved.

As shown in fig. 2 to 6, the whole body 9 of the laser welding machine is in a cube shape, although other shapes of structures may be adopted, specifically, the front side of the body 9 is a control panel, which is mainly provided with a control button, a human-computer interaction interface, and the like, the rear side of the body 9 is a wire harness panel, which is mainly used for connecting a welding gun wire harness, and the like, and the left and right sides of the body 9 are side closing plates, in this embodiment, an air duct is arranged in the body 9, and the air duct is vertically arranged, the bottom side is an air inlet 10, the top side is an air outlet 11, the air outlet 11 of the air duct is provided with a cooling fan, specifically, the bottom side of the body 9 is provided with an inlet of the air duct, the top side of the body 9 is provided with an air outlet of the air duct, and the cooling fan is arranged on the top side of the body 9, and can generate air flow from bottom to top in the air duct, so as to effectively cool the laser welding machine, and can effectively discharge heat generated during the work of the laser welding machine, and ensure the long-term and stable work of the laser welding machine;

in this embodiment, the housing bins 12 are respectively disposed on the left and right sides of the machine body 9, the housing bins 12 are used for storing devices such as laser components, specifically, the housing bin 12 on one side is an optical bin used for assembling related devices for housing the laser components, the housing bin 12 on the other side is an electrical bin mainly used for installing a power supply, an optical device control panel, a controller of a temperature control system, and the like, components such as a compressor, an expansion valve, and a four-way valve of the temperature control system are disposed in a space near the rear side of the machine body 9, one side of the housing bin 12 facing the middle of the machine body 9 is a cold plate 3, the cold plate 3 and panels on the front and rear sides of the machine body 9 enclose the air duct, in other words, wall surfaces on two opposite sides of the air duct are cold plates 3, a heat source attached to the cold plate 3 performs efficient heat exchange with a refrigerant flowing through the cold plate 3, and simultaneously, airflow passing through the air duct performs auxiliary heat exchange with the cold plate 3, thereby improving heat exchange efficiency and cooling effect on the heat source; and the condenser 2 of the temperature control system is arranged at an air outlet of the air channel, the heat emitted by the condenser 2 is efficiently taken away and discharged by the air flow passing through the air channel, the heat dissipation efficiency is further improved, the heat dissipation fan arranged at the outlet of the air channel is the fan 5 arranged at the condenser 2 in the temperature control system, the fan 5 is used for accelerating the heat convection at the condenser 2 to improve the heat dissipation efficiency, meanwhile, stable air flow is generated in the air channel, the heat in the laser welding machine is discharged by the air flow through the air channel, and the heat dissipation efficiency is improved while the structure compactness is improved.

The handle of being convenient for carry is installed at the organism top, and the organism is low to be provided with the truckle improve equipment mobility of taking the brake.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. The utility model provides a laser welding machine, its characterized in that, includes laser instrument subassembly and temperature control system, and laser instrument subassembly and temperature control system are integrated in organism (9), temperature control system includes compressor (1), condenser (2), cold drawing (3) and expansion valve (4), compressor (1), condenser (2), cold drawing (3) and expansion valve (4) pass through the tube coupling in order to constitute the control by temperature change return circuit that supplies refrigerant circulation to flow, the source of generating heat (8) and cold drawing (3) heat-conduction of laser instrument subassembly are connected, and the refrigerant carries out the phase transition in cold drawing (3) in order to carry out the heat exchange with source of generating heat (8).

2. The laser welding machine according to claim 1, characterized in that the temperature control system shares one controller (7) with the laser assembly.

3. The laser welding machine according to claim 2, wherein a sensor is provided in the temperature control circuit, and the controller (7) receives monitoring information monitored by the sensor to compare with a set value for automatic control.

4. The laser welding machine according to claim 3, wherein the sensor comprises one or more of a cold plate inlet temperature sensor disposed at a cold plate inlet, a cold plate temperature sensor disposed on a cold plate, a cold plate outlet temperature sensor disposed at a cold plate outlet, a low air pressure sensor disposed in a temperature control loop on a side of a compressor inlet, a high air pressure sensor disposed in a temperature control loop on a side of a compressor outlet, a suction air temperature sensor disposed at a compressor inlet, a discharge air temperature sensor disposed at a compressor outlet, an ambient temperature sensor, and a condenser temperature sensor disposed on a condenser.

5. The laser welding machine according to claim 1, characterized in that a fan (5) is also provided at the condenser (2).

6. The laser welding machine according to claim 1, further comprising a four-way valve (6) disposed in the temperature control loop, wherein the four-way valve (6) is connected to the compressor (1), the condenser (2), and the cold plate (3) respectively to change a flow direction of a refrigerant to perform switching between cooling and heating.

7. The laser welding machine according to any one of claims 1 to 6, characterized in that an air duct is arranged in the machine body (9), and at least one side wall surface of the air duct is formed by the cold plate (3).

8. The laser welding machine according to claim 7, wherein the left side and the right side of the machine body (9) are respectively provided with a containing bin, one side of each containing bin facing the middle of the machine body (9) is provided with a cold plate (3), and the cold plates (3) on the left side and the right side and front and back panels of the machine body (9) enclose a wind channel.

9. Laser welding machine according to claim 7, characterized in that the condenser (2) is arranged at the air outlet of the air duct.

10. The laser welding machine according to claim 7, characterized in that the air duct is vertically arranged, the bottom side is an air inlet, the top side is an air outlet, and the air outlet of the air duct is provided with a cooling fan (5).