CN219293018U

CN219293018U - Low-power laser-assisted paraxial TIG composite material-increasing device

Info

Publication number: CN219293018U
Application number: CN202223577088.2U
Authority: CN
Inventors: 王克鸿; 段梦伟; 王波; 彭勇; 黄勇; 周明
Original assignee: Guangdong Aidit Intelligent Technology Co ltd; Foshan National Defense Science And Technology Industrial Technology Achievement Industrialization Application And Promotion Center
Current assignee: Guangdong Aidit Intelligent Technology Co ltd; Foshan National Defense Science And Technology Industrial Technology Achievement Industrialization Application And Promotion Center
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-04
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a low-power laser auxiliary paraxial TIG composite material adding device, which relates to the technical field of arc material adding manufacturing equipment and comprises a low-power laser material adding processing head, a paraxial TIG arc material adding gun body, a wire feeder, a wire feeding nozzle, a metal wire, a connecting and controlling device, a low-power laser, a paraxial TIG material adding power supply, a six-axis robot, a robot control cabinet, a workbench, a clamp and a substrate, wherein the utility model has the advantages of improving efficiency: by arranging the low-power laser additive processing head, the paraxial TIG arc additive gun body and the wire feeder, low-power laser is introduced into the paraxial TIG arc to act on a molten pool together, so that heat input is increased, the heat input acts on the molten pool together, the width of the molten pool is ensured, the penetration is increased, the problem of inter-layer unfused and the like caused by insufficient penetration in the additive process can be solved, the oscillation of the molten pool is promoted, the stirring of the molten pool is accelerated, the solidification rate of the molten pool is improved, the solidification grains of the molten pool are thinned, the microstructure and mechanical properties of additive parts are improved, and the additive manufacturing quality is improved.

Description

Low-power laser-assisted paraxial TIG composite material-increasing device

Technical Field

The utility model relates to the technical field of arc additive manufacturing equipment, in particular to a low-power laser-assisted paraxial TIG composite additive device.

Background

The arc additive manufacturing technology is a method for forming three-dimensional metal parts by using an arc as a heat source to melt metal wires and accumulating layer by layer according to a preset path. Compared with a low-power laser heat source and an electron beam heat source, the electric arc material-increasing cost is low, the utilization rate of wires is high, the material-increasing efficiency is high, and the forming of ultra-large complex components can be realized in the atmospheric environment. However, the arc energy density is low, the melting width of a molten pool formed during material increase is large, the melting depth is shallow, defects such as inter-layer unfused and the like are easily generated, and defects such as undercut and the like are easily generated when the material increase speed and the wire feeding speed are too high, so that the material increase efficiency is further improved, and the bottleneck is met.

In order to solve the above problems and overcome the shortcomings of the prior art, it is necessary to design a low-power laser and paraxial TIG arc composite additive device and method, which can increase heat input, improve deposition efficiency, promote vibration stirring of the molten pool, avoid unfused defects and/or biting in the additive process by acting the low-power laser beam and the paraxial TIG arc together on the same molten pool, and solve the above problems.

Disclosure of Invention

The utility model aims to provide a low-power laser-assisted paraxial TIG composite additive device so as to solve the problem that the molding of ultra-large complex components can be realized under the atmospheric environment in the prior art. However, the arc energy density is low, the melting width of a molten pool formed during material increase is large, the melting depth is shallow, defects such as inter-layer unfused and the like are easy to occur, defects such as undercut and the like are easy to occur when the material increase speed and the wire feeding speed are too high, and the bottleneck problem of the material increase efficiency is further improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the low-power laser auxiliary paraxial TIG composite material adding device comprises a low-power laser material adding processing head, a paraxial TIG electric arc material adding gun body, a wire feeder, a wire feeding nozzle, a metal wire, a connecting and controlling device, a low-power laser, a paraxial TIG material adding power supply, a six-axis robot, a robot control cabinet, a workbench, a clamp and a substrate, wherein the low-power laser material adding processing head is used for outputting a low-power laser beam for material adding;

the paraxial TIG arc material adding gun body is used for outputting a paraxial TIG arc for material adding;

the low-power laser beam output by the low-power laser material-increasing processing head and the paraxial TIG arc output by the electric arc material-increasing gun body act on the same molten pool, and the low-power laser material-increasing processing head and the electric arc material-increasing gun body rotate around the straight line direction of the wire feeding nozzle as an axis;

the paraxial TIG arc material adding gun body can independently rotate by taking the linear direction of the wire feeding nozzle as an axis through the connecting and controlling device;

the low-power laser material-increasing processing head and the paraxial TIG arc material-increasing gun body are fixed at the tail end of the six-axis robot through the connecting and controlling device.

Preferably, the connecting and controlling device is provided with the low-power laser additive processing head and the paraxial TIG arc additive gun body;

the low-power laser additive processing head can independently rotate around the linear direction of the wire feeding nozzle serving as an axis through the connecting and controlling device.

Preferably, the substrate is fixed on the workbench through the clamp.

Preferably, the low-power laser additive processing head is connected with the low-power laser, the low-power laser is communicated with the robot control cabinet, and the working parameters of the low-power laser additive processing head are controlled through the robot control cabinet.

Preferably, the paraxial TIG arc material-increasing gun body is connected with the paraxial TIG material-increasing power supply, the paraxial TIG material-increasing power supply is communicated with the robot control cabinet, and the working parameters of the paraxial TIG arc material-increasing gun body are controlled through the robot control cabinet.

Preferably, the wire feeding nozzle is connected with the wire feeding machine, the wire feeding machine is communicated with the robot control cabinet, and the wire feeding machine is controlled by the robot control cabinet so as to control the feeding and the back drawing of the metal wire.

Preferably, the six-axis robot is in communication with the robot control cabinet, and the motion trail of the six-axis robot is controlled through the robot control cabinet.

Compared with the prior art, the utility model has the beneficial effects that: by arranging the low-power laser additive processing head, the paraxial TIG arc additive gun body and the wire feeder, low-power laser is introduced into the paraxial TIG arc and acts on a molten pool together, so that the heat input is increased, the additive efficiency is improved, the defect that undercut and the like are not generated at a higher wire feeding speed and an additive speed is guaranteed, the defects are jointly acted on the molten pool, the width of the molten pool is guaranteed, the melting depth is increased, the problem that interlayer is not fused and the like due to insufficient melting depth in the additive process is solved, the oscillation and the stirring of the molten pool are promoted, the solidification rate of the molten pool is improved, the solidification grains of the molten pool are refined, the microstructure and the mechanical property of additive parts are improved, and the additive manufacturing quality is improved.

Drawings

Fig. 1 is an overall construction diagram of the present utility model.

In the figure: 1. a low power laser additive processing head; 2. a paraxial TIG arc material-increasing gun body; 3. a wire feeder; 4. a wire feeding nozzle; 5. a metal wire; 6. a connection and control device; 7. a low power laser; 8. a paraxial TIG additive power supply; 9. a six-axis robot; 10. a robot control cabinet; 11. a work table; 12. a clamp; 13. a substrate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1, the present utility model provides a technical solution: the low-power laser auxiliary paraxial TIG composite material adding device comprises a low-power laser material adding processing head 1, a paraxial TIG electric arc material adding gun body 2, a wire feeder 3, a wire feeder nozzle 4, a metal wire 5, a connecting and controlling device 6, a low-power laser 7, a paraxial TIG material adding power supply 8, a six-axis robot 9, a robot control cabinet 10, a workbench 11, a clamp 12 and a substrate 13, wherein the low-power laser material adding processing head 1 is used for outputting low-power laser beams for material adding; a paraxial TIG arc material-adding gun body 2 for outputting a paraxial TIG arc for material adding; the low-power laser beam output by the low-power laser additive processing head 1 and the paraxial TIG arc output by the arc additive gun body 2 act on the same molten pool, and the low-power laser additive processing head 1 and the arc additive gun body 2 rotate around the straight line direction of the wire feeding nozzle 4 as an axis; the paraxial TIG arc material-adding gun body 2 can independently rotate by taking the straight line direction of the wire feeding nozzle 4 as an axis through the connecting and controlling device 6; the low-power laser additive processing head 1, the paraxial TIG arc additive gun body 2 and the wire feeder 3 are arranged at the tail end of the six-axis robot 9 fixed by the connecting and controlling device 6, low-power laser is introduced into the paraxial TIG arc to jointly act on a molten pool, so that the heat input is increased, the additive efficiency is improved, the defect that undercut is not generated at higher wire feeding speed and additive speed is guaranteed, the defect that the undercut is generated is avoided, the defect that the groove is jointly acted on the molten pool is guaranteed, the melting depth is increased, the problem that the interlayer is not fused due to insufficient melting depth in the additive process is solved, the oscillation of the molten pool is promoted, the stirring of the molten pool is accelerated, the solidification rate of the molten pool is improved, the solidification grains of the molten pool are refined, the microstructure and the mechanical property of additive parts are improved, and the additive manufacturing quality is improved.

Further, the connecting and controlling device 6, the low-power laser additive processing head 1 and the paraxial TIG arc additive gun body 2 are arranged on the connecting and controlling device 6; the low-power laser additive processing head 1 can independently rotate by taking the linear direction of the wire feeding nozzle 4 as an axis through the connecting and controlling device 6 and is matched with normal operation.

Further, the substrate 13 is fixed to the table 11 by the jig 12, and stability during work is improved.

Further, the low-power laser additive processing head 1 is connected with the low-power laser 7, the low-power laser 7 is communicated with the robot control cabinet 10, and working parameters of the low-power laser additive processing head 1 controlled by the robot control cabinet 10 are matched for operation.

Further, the paraxial TIG arc material-increasing gun body 2 is connected with the paraxial TIG material-increasing power supply 8, the paraxial TIG material-increasing power supply 8 is communicated with the robot control cabinet 10, and the working parameters of the paraxial TIG arc material-increasing gun body 2 are controlled through the robot control cabinet 10, so that normal connection is ensured.

Further, the wire feeding nozzle 4 is connected with the wire feeding machine 3, the wire feeding machine 3 is communicated with the robot control cabinet 10, and the wire feeding machine 3 controlled by the robot control cabinet 10 further controls the feeding and the back drawing of the metal wire 5 to operate in a matched manner.

Further, the six-axis robot 9 is communicated with the robot control cabinet 10, and the track limit is realized through the motion track of the six-axis robot 9 controlled by the robot control cabinet 10.

Specifically, when the utility model is used: the implementation process comprises the following steps:

step 1, preheating a substrate before material addition, wherein the preheating temperature is 250 ℃, adjusting the angles of the low-power laser material-adding processing head 1 and the paraxial TIG electric arc material-adding gun body 2, ensuring that a low-power laser beam generated by the low-power laser material-adding processing head 1 and a paraxial TIG electric arc generated by the paraxial TIG electric arc material-adding gun body 2 act on the same molten pool, and enabling the metal wire 5 to be fully melted and flowed in the molten pool;

step 2, switching on a power supply, waiting for a communication signal of the whole system to be in place, and setting a forming path program according to a geometric model of the additive part; setting the wire feeding speed of the metal wire 5 according to the geometric forming size; presetting low-power laser power, pulse frequency, paraxial TIG additive current and paraxial TIG additive voltage according to wire feeding speed;

step 3, the six-axis robot 9 carries the low-power laser additive processing head 1 and the paraxial TIG arc additive gun body 2 to reach an arcing position through the connecting and controlling device 6, the robot control cabinet 10 sends signals to the paraxial TIG additive power supply 8 and the low-power laser 7 according to a preset program, ignites the electric arc and starts low-power laser, then sends control signals to the wire feeder 3, starts the wire feeder 3 to feed the metal wire 5 into a molten pool, and then walks according to a preset path to perform additive;

step 4, after the material addition is completed, the robot control cabinet 10 sends a signal to the wire feeder 3, the wire feeder stops feeding wires, and then sends a signal to the paraxial TIG material addition power supply 8 and the low-power laser 7 to extinguish an electric arc and turn off the low-power laser;

step 5, controlling the six-axis robot 9 to move through the robot control cabinet 10, moving the low-power laser additive processing head 1 and the paraxial TIG arc additive gun body 2 to a next starting point, and starting the next additive;

step 6, repeating the steps 3-5 until the dimension of the additive reaches a preset design, and obtaining the required additive metal part;

by arranging the low-power laser additive processing head 1, the paraxial TIG arc additive gun body 2 and the wire feeder 3, low-power laser is introduced into the paraxial TIG arc and acts on a molten pool together, so that the heat input is increased, the additive efficiency is improved, the defects of no undercut and the like at a higher wire feeding speed and an additive speed are guaranteed, the molten pool is acted on the molten pool together, the width of the molten pool is guaranteed, the penetration is increased, the problems of inter-layer unfused and the like caused by insufficient penetration in the additive process can be solved, the oscillation and the stirring of the molten pool are promoted, the solidification rate of the molten pool is improved, the solidification grains of the molten pool are refined, the microstructure and the mechanical property of additive parts are improved, and the additive manufacturing quality is improved.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in 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," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a supplementary paraxial TIG composite material adding device of low power laser, including low power laser material adding processing head (1), paraxial TIG electric arc material adding rifle body (2), wire feeder (3), wire feeding mouth (4), wire material (5), connection and controlling means (6), low power laser (7), paraxial TIG material adding power (8), six robots (9), robot control cabinet (10), workstation (11), anchor clamps (12), base plate (13), its characterized in that: the low-power laser additive processing head (1) is used for outputting a low-power laser beam for additive;

the paraxial TIG arc material-increasing gun body (2) is used for outputting a paraxial TIG arc for material increase;

the low-power laser beam output by the low-power laser additive processing head (1) and the paraxial TIG arc output by the electric arc additive gun body (2) act on the same molten pool, and the low-power laser additive processing head (1) and the electric arc additive gun body (2) rotate around the straight line direction of the wire feeding nozzle (4) as an axis;

the paraxial TIG arc material adding gun body (2) can independently rotate by taking the linear direction of the wire feeding nozzle (4) as an axis through the connecting and controlling device (6);

the low-power laser additive processing head (1) and the paraxial TIG arc additive gun body (2) are fixed at the tail end of the six-axis robot (9) through the connecting and controlling device (6).

2. The low power laser assisted paraxial TIG composite additive device of claim 1, wherein:

the connecting and controlling device (6), the low-power laser additive processing head (1) and the paraxial TIG arc additive gun body (2) are arranged on the connecting and controlling device (6);

the low-power laser additive processing head (1) can independently rotate around the linear direction of the wire feeding nozzle (4) serving as an axis through the connecting and controlling device (6).

3. The low power laser assisted paraxial TIG composite additive device of claim 1, wherein: the substrate (13) is fixed on the workbench (11) through the clamp (12).

4. The low power laser assisted paraxial TIG composite additive device of claim 1, wherein: the low-power laser additive processing head (1) is connected with the low-power laser (7), the low-power laser (7) is communicated with the robot control cabinet (10), and the working parameters of the low-power laser additive processing head (1) are controlled through the robot control cabinet (10).

5. The low power laser assisted paraxial TIG composite additive device of claim 1, wherein: the bypass TIG arc material-increasing gun body (2) is connected with the bypass TIG material-increasing power supply (8), the bypass TIG material-increasing power supply (8) is communicated with the robot control cabinet (10), and the working parameters of the bypass TIG arc material-increasing gun body (2) are controlled through the robot control cabinet (10).

6. The low power laser assisted paraxial TIG composite additive device of claim 1, wherein: the wire feeding nozzle (4) is connected with the wire feeding machine (3), the wire feeding machine (3) is communicated with the robot control cabinet (10), and the wire feeding machine (3) is controlled by the robot control cabinet (10), so that the feeding and the back drawing of the metal wire (5) are controlled.

7. The low power laser assisted paraxial TIG composite additive device of claim 1, wherein: the six-axis robot (9) is communicated with the robot control cabinet (10), and the motion track of the six-axis robot (9) is controlled through the robot control cabinet (10).