A multi-wire synchronous additive manufacturing device and method for laser-induced arc oscillation

Abstract

The present invention discloses a multi-wire synchronous additive device and method of laser-induced arc oscillation, the device comprises an assembly seat rotatably connected to the lower end of a vertical driving member, a horizontal angle adjustment mechanism is installed between the assembly seat and the vertical driving member, a plurality of laser emitters are installed side by side at the lower end of the assembly seat, an active wire guide mechanism and a welding gun connecting seat are installed on the assembly seat, a plurality of wire feeding mechanisms are installed at the lower end of the active wire guide mechanism, a plurality of welding mechanisms are installed at the lower end of the welding gun connecting seat, these welding mechanisms are connected to the gas distribution pipe system, the discharge mode of the plurality of wire feeding mechanisms and the plurality of welding mechanisms are consistent with the discharge mode of the laser emitter; the method is to use the above-mentioned device to perform multi-wire synchronous additive operations. While improving the accuracy and efficiency of additives, the present invention can be freely adjusted according to the spacing requirements of the additive parts, thereby improving its adaptability and maneuverability. The present invention is applicable to the technical field of arc laser composite additives.

Description

Technical Field

[0001] The present invention belongs to the technical field of arc laser composite additive, and in particular, relates to a multi-wire synchronous additive device and method for laser-induced arc oscillation. Background Art

[0002] At present, in the field of additive manufacturing, laser and electric welding additive manufacturing are commonly used methods. The laser additive manufacturing method has a small width of additive manufacturing, which is suitable for the additive manufacturing of extremely precise parts, but not suitable for the additive manufacturing of parts with a larger additive area, and has low operating efficiency. The electric welding additive manufacturing method has a large width of additive manufacturing, which is the opposite of the effect of laser additive manufacturing. It is suitable for the additive manufacturing of relatively rough and large-area parts, with high operating efficiency, but low precision. In order to neutralize the advantages of the two and eliminate their disadvantages, the use of laser-induced arc oscillation for additive manufacturing came into being, and the equipment manufactured using this method is widely used in various fields. However, when performing large-scale additive manufacturing, even if laser-induced arc is used for additive manufacturing, the low precision and slow operating efficiency are improved, but the efficiency still cannot meet expectations. Moreover, it cannot be freely adjusted according to the spacing requirements of the additive parts, which reduces its adaptability and maneuverability. Summary of the invention

[0003] The present invention provides a multi-wire synchronous additive device and method with laser-induced arc oscillation, which can improve the additive accuracy and efficiency while being able to freely adjust according to the spacing requirements of additive parts to improve its adaptability and maneuverability.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A multi-wire synchronous additive device with laser-induced arc oscillation comprises an assembly seat rotatably connected to the lower end of a vertical driving member, a horizontal angle adjustment mechanism is installed between the assembly seat and the vertical driving member, a plurality of laser emitters are installed side by side at the lower end of the assembly seat, an active wire guiding mechanism and a welding gun connecting seat are respectively installed on the assembly seat and on both sides of the laser emitters, a plurality of wire feeding mechanisms are installed at the lower end of the active wire guiding mechanism, a plurality of welding mechanisms are installed at the lower end of the welding gun connecting seat, these welding mechanisms are connected to a gas distribution pipe system, and the discharge mode of the plurality of wire feeding mechanisms and the plurality of welding mechanisms is consistent with the discharge mode of the laser emitter.

[0006] Furthermore, the vertical driving member includes a vertical electric cylinder, the upper end of the electric cylinder body of the vertical electric cylinder is detachably connected to the robotic arm, the lower end of the electric cylinder rod of the vertical electric cylinder is coaxially rotatably connected to the upper end of the rotating shaft, and the lower end of the rotating shaft is fixedly connected to the upper end of the assembly seat.

[0007] Furthermore, the horizontal angle adjustment mechanism includes a first drive motor connected to the electric cylinder rod through a first adapter, a first transmission gear is coaxially mounted on the output shaft of the first drive motor, and a second transmission gear is coaxially mounted on the rotating shaft, and the first transmission gear and the second transmission gear are meshed with each other.

[0008] Furthermore, the active wire guiding mechanism includes a distribution seat arranged below the assembly seat, a first connecting column is constructed at the upper end of the distribution seat, and a first strip hole extending along the arrangement direction of the wire feeding mechanism is opened on the assembly seat. The first connecting column passes through the first strip hole and is detachably connected to the assembly seat through a first locking nut threadedly connected thereto, and an active wire guiding unit is constructed at the upper end of the first connecting column. Multiple welding wires pass through the active wire guiding unit side by side and enter each wire feeding mechanism respectively through the first connecting column and the distribution seat.

[0009] Furthermore, the active wire guiding unit includes a mounting seat constructed at the upper end of the first connecting column, an assembly opening penetrating the mounting seat is opened on the side wall of the mounting seat, and a plurality of wire feeding channels arranged at intervals along the arrangement direction of the wire feeding mechanism are opened at the upper end of the mounting seat, each of the wire feeding channels passes through the mounting seat, the first connecting column and the distribution seat in sequence, and extends from the lower end of the corresponding wire feeding mechanism, and the wire feeding channel is connected to the assembly opening; two wire feeding rollers are symmetrically arranged on both sides of the mounting seat and located at the assembly opening, and the two wire feeding rollers are driven to rotate relative to each other.

[0010] Furthermore, the wire feeding mechanism includes a fixed tube, a first metal flexible tube and a wire outlet nozzle which are connected in sequence along the conveying direction of the welding wire. The upper end of the fixed tube is fixed to the lower end of the active wire guiding mechanism, and the welding wire passes through the fixed tube, the first metal flexible tube and the wire outlet nozzle in sequence.

[0011] Furthermore, the welding gun connecting seat includes a receiving seat body arranged below the assembly seat, a second connecting column is constructed at the upper end of the receiving seat body, and a second strip hole extending along the arrangement direction of the wire feeding mechanism is opened on the assembly seat. The second connecting column passes through the second strip hole and is detachably connected to the assembly seat through a second locking nut threadedly connected thereto, a main wire is connected to the upper end of the second connecting column, and the main wire is electrically connected to each welding mechanism, and the welding mechanism is connected to the lower end of the receiving seat body.

[0012] Furthermore, the welding mechanism includes a base pipe, a second metal flexible pipe and a welding head which are connected in sequence vertically downward, the upper end of the branch conductor is connected to the main conductor, the lower end of the branch conductor passes through the base pipe and the second metal flexible pipe in sequence and is connected to the electrode on the welding head, and the gas distribution pipe system is connected to the base pipe.

[0013] Furthermore, the laser emitter includes an emitter body having a joint ball constructed on the upper end, the joint ball is movably assembled in the assembly cavity of the bowl-shaped seat, the bowl-shaped seat is detachably connected to the lower end of the assembly seat, and a threaded hole connected to the assembly cavity is opened on the outer peripheral wall of the bowl-shaped seat, the locking bolt is threadedly connected to the bowl-shaped seat through the threaded hole, and the end of the locking bolt is locked on the outer peripheral wall of the joint ball.

[0014] The present invention also discloses a method for using the multi-wire synchronous material adding device with laser-induced arc oscillation, comprising the following steps:

[0015] Step 1. First, measure the spacing between multiple parts of the required additive component;

[0016] Step 2. Adjust the spacing between the wire feeding mechanisms and the spacing between the welding mechanisms so that the corresponding wire feeding mechanisms and welding mechanisms correspond to the parts of the component to be added;

[0017] Step 3. Adjust the angle of the laser emitter so that the laser emitted by the laser emitter acts on the corresponding part of the component to be added;

[0018] Step 4. Supply multiple welding wires to the active wire guiding mechanism side by side, and control the action of the active wire guiding mechanism to drive the welding wires to be synchronously supplied to each wire feeding mechanism;

[0019] Step 5: Control the robot arm to move on the component to be added, and perform multi-wire synchronous and continuous addition operations.

[0020] Since the present invention adopts the above structure, compared with the prior art, the technical progress achieved is that: the present invention can perform multi-layer additives on a specific area of ​​the component to be added as needed, or can perform synchronous single-layer additives on multiple parts of the component to be added, or synchronously perform multi-layer additives on multiple parts. Specifically, when performing multi-layer additives, the wire feeding mechanisms are arranged according to the movement direction of the robot arm (the linear movement direction of the robot arm during the additive process), and the height of the lower ends of these wire feeding mechanisms decreases along the movement direction of the robot arm, and then the multiple welding mechanisms are respectively arranged at multiple wire feeding mechanisms, and then, each laser emitter is adjusted so that the laser emitted by the laser emitter acts between the corresponding welding mechanism and the wire feeding mechanism, and then, the robot arm is driven to move along the length direction of the additive part, so that the welding wire is welded layer by layer on the additive part, thereby achieving the purpose of multi-layer additives at this part. When performing simultaneous single-layer addition of multiple parts to be added, align each wire feeding mechanism and each welding mechanism with the corresponding part of the component to be added, and then adjust the angle of the laser emitter so that the laser emitted by the laser emitter acts on the corresponding part of the component to be added. After that, drive the mechanical arm to move along the length direction of the addition part so that multiple welding wires are welded side by side on each addition part, thereby achieving the purpose of single-layer addition of multiple parts. When performing multi-layer addition of multiple parts simultaneously, combining the above-mentioned multi-layer addition and single-layer addition methods, each part has at least two welding wires for welding addition. In the process of addition, the present invention uses an active wire guiding mechanism to smoothly and continuously supply welding wire, and transports the protective gas to the end of each welding mechanism through the gas distribution pipe system to ensure the stability of the addition and the effect of the addition. In summary, the present invention can improve the accuracy and efficiency of addition while being able to freely adjust according to the spacing requirements of the addition parts, thereby improving its adaptability and maneuverability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0024] Figure 2 It is a structural front view of an embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the connection between the vertical driving member, the assembly seat and the horizontal angle adjustment mechanism according to an embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of an assembly seat according to an embodiment of the present invention;

[0027] Figure 5 It is a structural schematic diagram of an active wire guiding mechanism, multiple wire feeding mechanisms and multiple welding wire connections according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic structural diagram of an active wire guiding mechanism connected to a plurality of welding wires according to an embodiment of the present invention;

[0029] Figure 7 This is a structural schematic diagram of the connection between the first connecting column and the mounting seat in the active wire guiding mechanism according to an embodiment of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the connection between the second driving motor, two wire feeding rollers and two third transmission gears in the active wire guiding mechanism of an embodiment of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of a wire feeding mechanism according to an embodiment of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the connection between a welding gun connection base, a gas distribution pipe system and a plurality of welding mechanisms according to an embodiment of the present invention;

[0033] Fig.11 It is a structural schematic diagram of a welding mechanism according to an embodiment of the present invention;

[0034] Fig.12 This is a schematic diagram of the structure of the laser transmitter and the assembly seat connected in accordance with an embodiment of the present invention;

[0035] Fig.13 A schematic structural diagram of another angle of connection between the laser emitter and the mounting base according to an embodiment of the present invention;

[0036] Fig.14 It is a schematic diagram of the structure of the laser emitter and the assembly seat separated according to an embodiment of the present invention.

[0037] Labeled parts: 100-assembly seat, 101-plate seat body, 102-first strip hole, 103-second strip hole, 104-fixed column, 105-assembly block, 106-connecting hole, 200-vertical electric cylinder, 201-electric cylinder body, 202-electric cylinder rod, 300-horizontal angle adjustment mechanism, 301-first drive motor, 302-first adapter seat, 303-rotating shaft, 304-first transmission gear, 305-second transmission gear, 400-active wire guide mechanism, 401-distribution seat, 402-first connecting column, 403-first locking nut, 404-mounting seat, 405-assembly port, 406-wire feeding channel, 407-second adapter seat, 408-second drive motor, 409-connecting shaft, 410-wire feeding roller, 411-annular rolling groove, 412-third transmission gear, 500-wire feeding mechanism , 501-fixed tube, 502-first joint sleeve, 503-first metal flexible tube, 504-wire outlet, 505-second joint sleeve, 600-welding gun connection seat, 601-receiving seat body, 602-second connecting column, 603-second locking nut, 604-main wire, 700-welding mechanism, 701-base tube, 702-third joint sleeve, 703-second metal flexible tube, 704-welding head , 705-the fourth joint sleeve, 706-electrode, 800-laser emitter, 801-bowl seat, 802-assembly cavity, 803-threaded column, 804-threaded hole, 805-locking bolt, 806-emitter body, 807-joint ball, 900-welding wire, 1000-gas distribution pipe system, 1001-gas distribution main pipe, 1002-gas distribution joint pipe, 1003-gas distribution branch pipe, 1004-control valve. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] The present invention discloses a multi-wire synchronous material adding device which induces arc oscillation by laser. Figure 1-14As shown, it includes an assembly seat 100, a vertical drive member, a horizontal angle adjustment mechanism 300, an active wire guide mechanism 400, a welding gun connection seat 600, a gas distribution pipe system 1000, a plurality of laser emitters 800, a plurality of wire feeding mechanisms 500 and a plurality of welding mechanisms 700. Among them, the assembly seat 100 is rotatably connected to the lower end of the vertical drive member, and the horizontal angle adjustment mechanism 300 is assembled between the assembly seat 100 and the vertical drive member. The plurality of laser emitters 800 are installed side by side at the lower end of the assembly seat 100, the active wire guide mechanism 400 and the welding gun connection seat 600 are both assembled on the assembly seat 100, and the active wire guide mechanism 400 and the welding gun connection seat 600 are respectively located on both sides of the laser emitter 800. The multiple wire feeding mechanisms 500 are installed at the lower end of the active wire guiding mechanism 400, and the multiple welding mechanisms 700 are installed at the lower end of the welding gun connecting seat 600. These welding mechanisms 700 are connected to the gas distribution pipe system 1000, and the discharge methods of the multiple wire feeding mechanisms 500 and the multiple welding mechanisms 700 are consistent with the discharge method of the laser emitter 800. The working principle and advantage of the present invention are that the present invention can perform multi-layer additive manufacturing on a specific area of ​​the component to be added as needed, and can also perform synchronous single-layer additive manufacturing on multiple parts of the component to be added. Specifically, when performing multi-layer additive manufacturing, the wire feeding mechanisms 500 are arranged according to the movement direction of the robot arm (the linear movement direction of the robot arm during the additive process), and the direction is as follows: Figure 1 The height of the lower ends of the wire feeding mechanisms 500 decreases along the direction of movement of the robot arm, and the plurality of welding mechanisms 700 are respectively arranged at the plurality of wire feeding mechanisms 500. After that, each laser emitter 800 is adjusted so that the laser emitted by the laser emitter 800 acts between the corresponding welding mechanism 700 and the wire feeding mechanism 500. Then, the robot arm is driven to move along the length direction of the additive part, that is, Figure 1 When performing simultaneous single-layer addition of multiple parts to be added, align each wire feeding mechanism 500 and each welding mechanism 700 with the corresponding part of the component to be added, and then adjust the angle of the laser emitter 800 so that the laser emitted by the laser emitter 800 acts on the corresponding part of the component to be added. Then, drive the robot arm to move along the length direction of the part to be added, that is, Figure 1The longitudinal direction shown in the figure enables multiple welding wires 900 to be welded side by side on each material addition part, thereby achieving the purpose of multi-part single-layer material addition. In the process of material addition, the present invention uses the active wire guide mechanism 400 to steadily and continuously supply welding wire 900, and the gas distribution pipe system 1000 to deliver the protective gas to the end of each welding mechanism 700, thereby ensuring the stability of the material addition and the effect of the material addition. In summary, the present invention can improve the accuracy and efficiency of material addition while being able to freely adjust according to the spacing requirements of the material addition parts, thereby improving its adaptability and maneuverability.

[0040] As a preferred embodiment of the present invention, Figure 3 , 4 As shown, the assembly seat 100 includes a plate-shaped seat body 101, and a first strip hole 102 and a second strip hole 103 are respectively opened on both sides of the plate-shaped seat body 101, and the first strip hole 102 and the second strip hole 103 both extend along the arrangement direction of the wire feeding mechanism 500. A fixing column 104 is configured at the lower end of the plate-shaped seat body 101, and an assembly block 105 is configured at the lower end of the fixing column 104, and the assembly block 105 is connected to each laser emitter 800.

[0041] As a preferred embodiment of the present invention, Figure 3 As shown, the vertical drive member includes a vertical electric cylinder 200, the upper end of the electric cylinder body 201 of the vertical electric cylinder 200 is detachably connected to the mechanical arm, the lower end of the electric cylinder rod 202 of the vertical electric cylinder 200 is coaxially rotatably connected to the upper end of the rotating shaft 303, and the lower end of the rotating shaft 303 is fixedly connected to the upper end of the assembly seat 100. In this embodiment, the vertical electric cylinder 200 is connected to the assembly seat 100, and the action of the vertical electric cylinder 200 is controlled so that the welding mechanism 700 and the wire feeding mechanism 500 can quickly approach or move away from the part to be added, that is, when approaching quickly, the situation of cold welding (insufficient material addition) is avoided, and when moving away quickly, the situation of over-welding (excessive material addition) is avoided.

[0042] As a preferred embodiment of the present invention, Figure 3As shown, the horizontal angle adjustment mechanism 300 includes a first drive motor 301, a first adapter 302, a first transmission gear 304 and a second transmission gear 305. The first adapter 302 is fixedly connected to the electric cylinder rod 202, the first drive motor 301 is installed on the first adapter 302, the first transmission gear 304 is coaxially assembled on the output shaft of the first drive motor 301, the second transmission gear 305 is coaxially assembled on the rotating shaft 303, and the first transmission gear 304 and the second transmission gear 305 are meshed with each other. The working principle and advantages of this embodiment are as follows: this embodiment controls the action of the first drive motor 301 so that it drives the rotating shaft 303 to rotate horizontally by a certain angle through the first transmission gear 304 and the second transmission gear 305. In this way, the rotating shaft 303 drives the active wire guiding mechanism 400, the welding gun connecting seat 600, the gas distribution pipe system 1000, the multiple laser emitters 800, the multiple wire feeding mechanisms 500 and the multiple welding mechanisms 700 to synchronously rotate along the axis of the rotating shaft 303 by a corresponding angle through the assembly seat 100, thereby achieving the purpose of steering the additive process.

[0043] As a preferred embodiment of the present invention, Figure 5-8 As shown, the active wire guide mechanism 400 includes a distribution seat 401, a first connecting column 402 and an active wire guide unit. The distribution seat 401 is arranged below the assembly seat 100, and the first connecting column 402 is constructed at the upper end of the distribution seat 401. The upper end of the first connecting column 402 passes through the first strip hole 102, and a first locking nut 403 is threadedly connected to the first connecting column 402. In this embodiment, by tightening the first locking nut 403, the first connecting column 402 and the assembly seat 100 are detachably connected; and by loosening the first locking nut 403, the first connecting column 402 can be adjusted in position in the first strip hole 102. After the adjustment is completed, the first locking nut 403 can be tightened, thereby realizing the adjustment of the relative position of the wire feeding mechanism 500 and the assembly seat 100. The active wire guiding unit of this embodiment is constructed at the upper end of the first connecting column 402. Multiple welding wires 900 pass through the active wire guiding unit side by side. After passing through the first connecting column 402 and the distribution seat 401, these welding wires 900 enter into each wire feeding mechanism 500 respectively, thereby achieving the purpose of synchronous supply of welding wires 900.

[0044] As a preferred embodiment of the present invention, Figure 6-8As shown, the active wire guide unit includes a mounting seat 404, a second drive motor 408, two wire feed rollers 410, two connecting shafts 409 and two third transmission gears 412. The mounting seat 404 is constructed at the upper end of the first connecting column 402, and an assembly port 405 is provided on the side wall of the mounting seat 404. The assembly port 405 horizontally penetrates the mounting seat 404, and a plurality of wire feed channels 406 are provided at the upper end of the mounting seat 404. These wire feed channels 406 are arranged at intervals along the arrangement direction of the wire feed mechanism 500. Each wire feed channel 406 passes through the mounting seat 404, the first connecting column 402 and the distribution seat 401 in sequence, and extends from the lower end of the corresponding wire feed mechanism 500, and the wire feed channel 406 is connected to the assembly port 405. The two wire feeding rollers 410 of this embodiment are symmetrically arranged on both sides of the mounting seat 404, and the two wire feeding rollers 410 are located at the position of the assembly port 405. The two connecting shafts 409 are respectively connected to the two wire feeding rollers 410, and each wire feeding roller 410 is coaxially connected to the corresponding connecting shaft 409, and both ends of each connecting shaft 409 are rotatably connected to the mounting seat 404. In this embodiment, a plurality of annular rolling grooves 411 are constructed on the outer peripheral surface of the wire feeding roller 410, and these annular rolling grooves 411 are arranged at intervals along the arrangement direction of the wire feeding mechanism 500, and the axis of each annular rolling groove 411 coincides with the axis of the wire feeding roller 410. One end of each welding wire 900 passes through the wire feeding channel 406 and passes through the assembly port 405, and the welding wire 900 passes through the gap between the two annular rolling grooves 411 opposite to the two wire feeding rollers 410 (i.e., the wire feeding port), and two third transmission gears 412 are installed at the same end of the two connecting shafts 409, each third transmission gear 412 is coaxially arranged with the corresponding connecting shaft 409, and the two third transmission gears 412 are meshed with each other. In this embodiment, the output shaft of the second drive motor 408 is coaxially connected to the end of one of the connecting shafts 409, and the second drive motor 408 is connected to the mounting seat 404 through the second adapter 407. The working principle and advantages of this embodiment are as follows: this embodiment controls the movement of the second drive motor 408 to drive the corresponding connecting shaft 409 to rotate. Under the action of the two third transmission gears 412, the two connecting shafts 409 rotate relative to each other, so that the welding wire 900 located in the wire feeding port is rolled and pushed downward by the two wire feeding rollers 410, thereby realizing synchronous, continuous and stable transportation of multiple welding wires 900, so that these welding wires 900 are accurately transported to each wire feeding mechanism 500, avoiding insufficient or excessive material addition due to unstable and asynchronous transportation.

[0045] As a preferred embodiment of the present invention, Fig. 9As shown, the wire feeding mechanism 500 includes a fixed tube 501, a first metal flexible tube 503 and a wire outlet nozzle 504. The fixed tube 501, the first metal flexible tube 503 and the wire outlet nozzle 504 are sequentially arranged along the feeding direction of the welding wire 900, and a first joint sleeve 502 and a second joint sleeve 505 are respectively constructed at the ends of the fixed tube 501 and the wire outlet nozzle 504 close to each other. The first joint sleeve 502 and the second joint sleeve 505 are respectively detachably connected to the two ends of the first metal flexible tube 503. The upper end of the fixed tube 501 is fixed to the lower end of the distribution seat 401 of the active wire guiding mechanism 400. The welding wire 900 passes through the fixed tube 501, the first metal flexible tube 503 and the wire outlet nozzle 504 in sequence and extends to the material adding part. Since the present embodiment adopts the first metal flexible tube 503, the angle, bending degree, height, etc. of the wire feeding mechanism 500 can be adjusted. During the normal additive operation, after the welding wire 900 passes through the first metal flexible tube 503, the contact between the welding wire 900 and the first metal flexible tube 503 does not change the shape of the first metal flexible tube 503 after being shaped, thereby ensuring that after being shaped, the wire feeding mechanism 500 can stably feed the wire and make the position of the wire outlet nozzle 504 correspond to the part to be added.

[0046] As a preferred embodiment of the present invention, Fig.10 As shown, the welding gun connection seat 600 includes a receiving seat body 601, a second connecting column 602 and a second locking nut 603. The receiving seat body 601 is arranged below the assembly seat 100, the second connecting column 602 is constructed at the upper end of the receiving seat body 601, the upper end of the second connecting column 602 passes through the second strip hole 103, and the second locking nut 603 is threadedly connected to the second connecting column 602. In this embodiment, the relative position of the second connecting column 602 and the assembly seat 100 is locked by tightening the second locking nut 603; when the relative position of the second connecting column 602 and the assembly seat 100 needs to be adjusted, the second locking nut 603 is loosened, and the position of the second connecting column 602 is adjusted along the length direction of the second strip hole 103, thereby adjusting the position of the receiving seat body 601 and the welding mechanism 700 connected to the receiving seat body 601. After the adjustment is completed, the second locking nut 603 is tightened. In this embodiment, a main conductor 604 is connected to the upper end of the second connecting column 602 . The main conductor 604 is electrically connected to each welding mechanism 700 , and each welding mechanism 700 is connected to the lower end of the receiving seat 601 .

[0047] As a preferred embodiment of the present invention, Fig.10 , 11As shown, the welding mechanism 700 includes a base pipe 701, a second metal flexible pipe 703 and a welding head 704. The base pipe 701, the second metal flexible pipe 703 and the welding head 704 are arranged in sequence along the vertical downward direction. A third joint sleeve 702 and a fourth joint sleeve 705 are respectively constructed at the ends of the base pipe 701 and the welding head 704 close to each other. The two ends of the second metal flexible pipe 703 are detachably connected to the third joint sleeve 702 and the fourth joint sleeve 705 respectively. The upper end of the branch conductor is connected to the main conductor 604, and the lower end of the branch conductor passes through the base pipe 701 and the second metal flexible pipe 703 in sequence and is connected to the electrode 706 on the welding head 704. The gas distribution pipe system 1000 is connected to the base pipe 701. In this embodiment, due to the use of the second metal flexible pipe 703, the angle, bending degree, height, etc. of the welding mechanism 700 can be adjusted. In the normal additive operation process, the position of the welding head 704 corresponds to the part to be added. The gas distribution pipe system 1000 of this embodiment includes a gas distribution main pipe 1001 and a plurality of gas distribution branch pipes 1003. A plurality of gas distribution joint pipes 1002 are constructed on the gas distribution main pipe 1001. Each gas distribution joint pipe 1002 is connected to one end of the corresponding gas distribution branch pipe 1003. The other end of the gas distribution branch pipe 1003 is connected to the corresponding base pipe 701. A control valve 1004 is installed on the gas distribution branch pipe 1003. During the material addition process, the shielding gas is distributed to each gas distribution branch pipe 1003 through the gas distribution main pipe 1001, and then enters the welding mechanism 700 through the gas distribution branch pipe 1003, and is finally discharged from the welding head 704.

[0048] As a preferred embodiment of the present invention, Figure 12-14As shown, the laser transmitter 800 includes a transmitter body 806, a bowl-shaped seat 801, a joint ball 807, a threaded column 803 and a locking bolt 805. The joint ball 807 is constructed at the upper end of the transmitter body 806, and the joint ball 807 is movably assembled in the assembly cavity 802 of the bowl-shaped seat 801. The threaded column 803 is constructed at the upper end of the bowl-shaped seat 801. A plurality of connecting holes 106 are provided at the lower end of the assembly block 105, and the threaded column 803 is detachably connected to the lower end of the assembly seat 100 through the corresponding connecting holes 106. In this embodiment, a threaded hole 804 is provided on the outer peripheral wall of the bowl-shaped seat 801, and the threaded hole 804 is communicated with the assembly cavity 802. The locking bolt 805 is threadedly connected to the bowl-shaped seat 801 through the threaded hole 804, and the end of the locking bolt 805 is locked on the outer peripheral wall of the joint ball 807. In this embodiment, the locking bolt 805 is loosened to release the locking of the joint ball 807 and the bowl-shaped seat 801, and then the angle of the emitter body 806 is adjusted so that the laser emitted by the emitter body 806 is aimed at the part to be added. After the adjustment is completed, the locking bolt 805 is tightened to lock the joint ball 807 and the bowl-shaped seat 801. In this embodiment, since the laser emitter 800 and the assembly block 105 are connected in a joint manner, whether it is multi-layer addition in a specific area or simultaneous single-layer addition in multiple parts of the component to be added, the angle of the laser emitter 800 can be freely adjusted, thereby improving the comprehensiveness of the laser angle adjustment and avoiding the situation of blind adjustment.

[0049] The present invention also discloses a method for using the multi-wire synchronous material adding device with laser-induced arc oscillation, comprising the following steps:

[0050] Step 1. First, measure the spacing between multiple parts of the required additive component;

[0051] Step 2. Adjust the spacing between the wire feeding mechanisms 500 and the spacing between the welding mechanisms 700 so that the corresponding wire feeding mechanisms 500 and welding mechanisms 700 correspond to the parts of the component to be added;

[0052] Step 3. Adjust the angle of the laser emitter 800 so that the laser emitted by the laser emitter 800 acts on the corresponding part of the component to be added;

[0053] Step 4. Supply multiple welding wires 900 to the active wire guiding mechanism 400 side by side, and control the active wire guiding mechanism 400 to drive the welding wires 900 to be synchronously supplied to each wire feeding mechanism 500;

[0054] Step 5: Control the robot arm to move on the component to be added, and perform multi-wire synchronous and continuous addition operations.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A method for using a multi-wire synchronous additive device with laser-induced arc oscillation, characterized in that: The multi-wire synchronous additive device comprises an assembly seat rotatably connected to the lower end of a vertical driving member, the vertical driving member comprises a vertical electric cylinder, the upper end of the electric cylinder body of the vertical electric cylinder is detachably connected to a mechanical arm, a horizontal angle adjustment mechanism is mounted between the assembly seat and the vertical driving member, a plurality of laser emitters are mounted side by side at the lower end of the assembly seat, an active wire guide mechanism and a welding gun connection seat are mounted on the assembly seat and on both sides of the laser emitters, a plurality of wire feeding mechanisms are mounted at the lower end of the active wire guide mechanism, a plurality of welding mechanisms are mounted at the lower end of the welding gun connection seat, these welding mechanisms are connected to a gas distribution pipe system, and the arrangement of the plurality of wire feeding mechanisms and the plurality of welding mechanisms is consistent with the arrangement of the laser emitters; The wire feeding mechanism comprises a fixed tube, a first metal flexible tube and a wire outlet nozzle which are sequentially connected along the feeding direction of the welding wire, the upper end of the fixed tube is fixed to the lower end of the active wire guiding mechanism, and the welding wire passes through the fixed tube, the first metal flexible tube and the wire outlet nozzle in sequence; the welding mechanism comprises a base tube, a second metal flexible tube and a welding head which are sequentially connected vertically downward, the upper end of the branch conductor is connected to the main conductor, the lower end of the branch conductor passes through the base tube and the second metal flexible tube in sequence and is connected to the electrode on the welding head, and the gas distribution pipe system is connected to the base tube; The method for using the multi-wire synchronous material adding device comprises the following steps: Step 1. First, measure the spacing between multiple parts of the required additive component; Step 2. Adjust the spacing between the wire feeding mechanisms and the spacing between the welding mechanisms so that the corresponding wire feeding mechanisms and welding mechanisms correspond to the parts of the component to be added; Step 3. Adjust the angle of the laser emitter so that the laser emitted by the laser emitter acts on the corresponding part of the component to be added; Step 4. Supply multiple welding wires to the active wire guiding mechanism side by side, and control the action of the active wire guiding mechanism so that it drives these welding wires to be synchronously supplied to each wire feeding mechanism; Step 5. Control the robot arm to move on the component to be added, and perform multi-wire synchronous and continuous addition operation; When performing multi-layer additive manufacturing, the wire feeding mechanisms are arranged according to the movement direction of the robot arm, and the heights of the lower ends of these wire feeding mechanisms decrease along the movement direction of the robot arm. The multiple welding mechanisms are then respectively arranged at multiple wire feeding mechanisms. Afterwards, each laser emitter is adjusted so that the laser emitted by the laser emitter acts between the corresponding welding mechanism and the wire feeding mechanism. Then, the robot arm is driven to move along the length direction of the additive part, so that the welding wire is welded layer by layer on the additive part, thereby achieving the purpose of multi-layer additive manufacturing at this part.

2. The method for using a multi-wire synchronous additive device with laser-induced arc oscillation according to claim 1, characterized in that: The lower end of the electric cylinder rod of the vertical electric cylinder is coaxially rotatably connected with the upper end of the rotating shaft, and the lower end of the rotating shaft is fixedly connected with the upper end of the assembly seat.

3. The method for using a multi-wire synchronous additive device with laser-induced arc oscillation according to claim 2, characterized in that: The horizontal angle adjustment mechanism includes a first drive motor connected to the electric cylinder rod through a first adapter, a first transmission gear is coaxially mounted on the output shaft of the first drive motor, and a second transmission gear is coaxially mounted on the rotating shaft, and the first transmission gear and the second transmission gear are meshed with each other.

4. The method for using a multi-wire synchronous additive device with laser-induced arc oscillation according to claim 1, characterized in that: The active wire guiding mechanism includes a distribution seat arranged below the assembly seat, a first connecting column is constructed at the upper end of the distribution seat, a first strip hole extending along the arrangement direction of the wire feeding mechanism is opened on the assembly seat, the first connecting column passes through the first strip hole and is detachably connected to the assembly seat through a first locking nut threadedly connected thereto, an active wire guiding unit is constructed at the upper end of the first connecting column, a plurality of welding wires pass through the active wire guiding unit side by side, and enter each wire feeding mechanism respectively through the first connecting column and the distribution seat.

5. The method for using the laser-induced arc oscillation multi-wire synchronous additive device according to claim 4, characterized in that: The active wire guiding unit includes a mounting seat constructed on the upper end of the first connecting column, an assembly opening penetrating the mounting seat is opened on the side wall of the mounting seat, and a plurality of wire feeding channels arranged at intervals along the arrangement direction of the wire feeding mechanism are opened on the upper end of the mounting seat, each of the wire feeding channels passes through the mounting seat, the first connecting column and the distribution seat in sequence, and extends from the lower end of the corresponding wire feeding mechanism, and the wire feeding channel is connected to the assembly opening; two wire feeding rollers are symmetrically arranged on both sides of the mounting seat and located at the assembly opening, and the two wire feeding rollers are driven to rotate relative to each other.

6. The method for using the laser-induced arc oscillation multi-wire synchronous additive device according to claim 1, characterized in that: The welding gun connecting seat includes a receiving seat body arranged below the assembly seat, a second connecting column is constructed at the upper end of the receiving seat body, a second strip hole extending along the arrangement direction of the wire feeding mechanism is opened on the assembly seat, the second connecting column passes through the second strip hole and is detachably connected to the assembly seat through a second locking nut threadedly connected thereto, a main wire is connected to the upper end of the second connecting column, and the main wire is electrically connected to each welding mechanism, and the welding mechanism is connected to the lower end of the receiving seat body.

7. The method for using the laser-induced arc oscillation multi-wire synchronous additive device according to claim 1, characterized in that: The laser emitter includes an emitter body with a joint ball constructed on the upper end. The joint ball is movably assembled in the assembly cavity of the bowl-shaped seat. The bowl-shaped seat is detachably connected to the lower end of the assembly seat. A threaded hole connected to the assembly cavity is opened on the outer peripheral wall of the bowl-shaped seat. The locking bolt is threadedly connected to the bowl-shaped seat through the threaded hole, and the end of the locking bolt is locked on the outer peripheral wall of the joint ball.

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