A thick plate laser-arc complementary hybrid welding device and method based on the energy siphon effect

Abstract

The present invention discloses a thick plate laser-arc complementary composite welding device and method based on an energy siphon effect, including a composite welding mechanism and a wire feeding wheel. The composite welding mechanism is composed of an arc welding machine, a high-power laser, a laser welding head and an arc welding torch, and further includes: a repeated driving component, which is arranged at the bottom of the wire feeding shell; a transmission component, which is in transmission connection with the repeated driving component; a bending component, which is arranged on one side of the positioning seat, and the bending component is composed of two groups of adjusting rods and a bending mechanism. The present invention has the advantages that through the mutual cooperation of the repeated driving component, the bending component, the transmission component and the pressing-down component, without affecting the welding work of the arc laser welding mechanism, the uniformity of wire feeding can be effectively improved, thereby effectively improving the welding quality. At the same time, it is applicable to different workpieces and different welding gaps, effectively improving the practicability of the arc laser composite welding equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser welding, and particularly relates to a thick plate laser-arc complementary composite welding device and method based on the energy siphon effect. Background Art

[0002] Arc welding is one of the most commonly used welding methods. This method has low equipment cost and strong process adaptability. However, due to its relatively low energy density and large heat input, it is easy to cause a large heat affected zone and welding deformation of the workpiece. Especially when welding medium and thick plates, multi-layer and multi-pass welding is often required, which not only has low working efficiency, but also is prone to defects such as interlayer slag inclusion and lack of fusion. Laser welding has advantages such as high energy density, small heat affected zone, and small deformation. However, this method also has obvious deficiencies: on the one hand, the investment cost of laser equipment is high; on the other hand, when welding medium and thick plates, due to the gradual attenuation of laser energy along the depth direction, problems such as insufficient root penetration and poor fusion often occur, and the stability of the keyhole is also difficult to guarantee. In order to overcome the limitations of single heat source welding, the laser-arc hybrid welding technology has emerged. This technology takes the synergistic effect of laser and arc: the arc heat source can preheat the workpiece and improve the absorption efficiency of laser energy; the deep penetration characteristic of the laser ensures good welding penetration. In laser-arc hybrid welding, the so-called "energy siphon effect" is not a common term, but it can be understood as the energy transfer and utilization phenomenon when laser and arc interact with each other. Among them, the wire feeding structure used in the hybrid welding equipment is particularly important, and the position of wire feeding determines the quality of the welded product.

[0003] However, there are some problems in the existing technology: when the laser-arc hybrid welding equipment is performing welding work, the wire feeding mechanism used on the equipment can only place the welding wire in a single direction alone. When welding plates with a wider welding gap, the wire feeding mechanism needs to cooperate with the welding gun to perform oscillating welding, so that the welding wire oscillates along the width direction of the gap during the welding process, so as to more evenly fill the gap. This leads to welding position deviation during arc welding and laser welding, resulting in a decline in welding quality, and there are certain limitations. Therefore, we propose a thick plate laser-arc complementary composite welding device and method based on the energy siphon effect. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a thick plate laser-arc complementary composite welding device and method based on the energy siphon effect. Through the mutual cooperation of the reciprocating driving component, bending component, transmission component and pressing-down component, without affecting the welding work of the arc-laser welding mechanism, the uniformity of wire feeding can be effectively improved, thereby effectively improving the welding quality. At the same time, it is applicable to different weldments and different welding gaps, thereby effectively improving the practicability of the arc-laser hybrid welding equipment.

[0005] The present invention is implemented as follows: a thick plate laser-arc complementary hybrid welding device based on energy siphon effect, comprising a hybrid welding mechanism and a wire feeding wheel, the hybrid welding mechanism is composed of an arc welding machine, a high-power laser, a laser welding head and an arc welding gun, the high-power laser and the laser welding head are used in conjunction with each other, the arc welding machine and the arc welding gun are used in conjunction with each other, the outer fixed sleeve of the laser welding head is provided with a mounting sleeve, the arc welding gun is arranged on one side of the laser welding head through the mounting sleeve, the outer end of the mounting sleeve away from the arc welding gun is movably connected with a wire feeding housing, the wire feeding wheel is arranged inside the wire feeding housing, and also includes:

[0006] A repeated driving assembly, wherein the repeated driving assembly is arranged at the bottom of the wire feeding housing, the bottom of the wire feeding housing is movably connected with a wire feeding tube, and the wire feeding tube is transmission-connected to the repeated driving assembly, so that the wire feeding tube is repeatedly horizontally moved at the bottom of the wire feeding housing by the repeated driving assembly;

[0007] A transmission assembly, wherein the transmission assembly is transmission-connected to the repetitive driving assembly, and the transmission assembly is movably connected to the wire feeding housing, the transmission assembly is used to support the wire feeding housing, a positioning seat is correspondingly provided at the bottom of the wire feeding housing, and the positioning seat is fixedly connected to the transmission assembly;

[0008] A bending assembly, which is arranged on one side of the positioning seat, and is composed of two groups of adjusting rods and a bending mechanism, wherein the bending mechanism is transmission-connected to the wire feeding tube, and the two groups of adjusting rods are transmission-connected to the bending mechanism, so that the two groups of adjusting rods are moved closer to or farther from each other through the bending mechanism;

[0009] The pressing assembly is arranged on the other side of the positioning seat, and the pressing assembly is in transmission connection with the transmission assembly, so that the pressing assembly is arranged to move up and down on the other side of the positioning seat through the transmission assembly.

[0010] Optionally, the repeated driving assembly includes a connecting seat and a movable sleeve, the connecting seat is rotatably installed on the bottom of the wire feeding shell, the lower end of one side of the wire feeding shell is threadedly connected with a fastening bolt, the connecting seat is fixed to the wire feeding shell by the fastening bolt, the connecting seat is hollow, the wire feeding tube is located inside the connecting seat, positioning shells are fixedly installed at both ends of the bottom of the connecting seat, sliding grooves are provided on opposite sides of the two groups of positioning shells, sliding seats are slidably connected inside the two groups of sliding grooves, the movable sleeve is fixedly installed between the two groups of sliding seats, and the movable sleeve is fixedly sleeved on the outside of the wire feeding tube.

[0011] Optionally, the reciprocating drive assembly further includes two sets of rotating discs. Positioning sleeves are rotatably sleeved on the outer sides of the two sets of rotating discs, and the positioning sleeves are fixedly connected to the positioning shell. A reversing gear set is arranged between the two sets of rotating discs, so that the two sets of rotating discs are arranged to rotate in opposite directions through the reversing gear set. One ends of the two sides of the two sets of rotating discs away from each other are rotatably connected with connecting rods, and one ends of the two connecting rods are respectively rotatably connected with the two sliding seats, and one end of the connecting rod penetrates through the outer side of the positioning shell to the inside of the sliding groove.

[0012] Optionally, sliding grooves are formed on the sides of the two sets of rotating discs away from each other, and adjusting sliding plates are slidably connected inside the sliding grooves. A threaded hole is formed at one end of one side of the adjusting sliding plate, and a fixing bolt is connected inside the threaded hole through threads, so that the adjusting sliding plate is fixedly arranged with the rotating disc through the fixing bolt. The other end of the connecting rod is rotatably installed at the other end of one side of the adjusting sliding plate.

[0013] Optionally, the transmission assembly includes a moving wheel and a fixed shell. The fixed shell is fixedly connected to the positioning sleeve. A transmission groove is formed at the lower end of one side of the fixed shell. A second synchronization mechanism is arranged inside the transmission groove. A speed change gear set is arranged at the lower end of one side of the fixed shell, and the speed change gear set is arranged between the second synchronization mechanism and the moving wheel, so that the moving wheel is in transmission connection with the second synchronization mechanism through the speed change gear set. The upper end of the second synchronization mechanism is in transmission connection with a bevel gear transmission mechanism. The bevel gear transmission mechanism is arranged inside the transmission groove, and the end of the bevel gear transmission mechanism is in transmission connection with a transmission gear. A docking groove is formed at the upper end of one side of the fixed shell, and the inside of the docking groove communicates with the inside of the transmission groove. The transmission gear is rotatably installed inside the docking groove. A plurality of tooth grooves are formed in a circle on the outer side of one of the rotating discs, and one of the rotating discs is meshed and connected with the transmission gear through the tooth grooves.

[0014] Optionally, the bending mechanism includes a bearing seat and a driving gear. The bearing seat is fixedly installed on one side of the positioning seat. A driving groove is formed inside the bearing seat. The driving gear is rotatably installed at the center inside the driving groove, and adjusting tooth plates are meshed and connected on both sides of the driving gear. The two adjusting tooth plates are slidably installed inside the driving groove, and the ends of the two adjusting tooth plates away from each other are respectively fixedly connected with two adjusting rods. The lower ends of the two adjusting rods are arranged at the same horizontal level.

[0015] Optionally, a linkage rod is fixedly installed at one end of one of the adjusting tooth plates, and one end of the linkage rod penetrates through the inside of the driving groove to the outside of the bearing seat. A linkage sleeve is fixedly installed at one end of the linkage rod. The linkage sleeve is fixedly sleeved on the outer side of the wire feeding pipe. A stabilizing hole is formed at one end of the upper surface of the positioning seat, and a stabilizing sleeve is slidably connected inside the stabilizing hole. The stabilizing sleeve is fixedly sleeved on the outer side of the wire feeding pipe. A welding wire is wound and connected on the outer side of the wire feeding wheel, and one end of the welding wire sequentially passes through the inside of the wire feeding shell, the inside of the connecting seat and the inside of the wire feeding pipe to the bottom of the positioning seat.

[0016] Optionally, the pressing-down assembly includes two groups of pressing plates and a lifting seat. Side mounting plates are fixedly installed at both ends on the other side of the positioning seat. The lifting seat is slidably installed between the two groups of side mounting plates, and an adjusting groove is formed at the bottom of the lifting seat. One end inside the adjusting groove is rotatably connected with an adjusting wheel, and a bidirectional lead screw is fixedly installed at the center on one side of the adjusting wheel. One end of the bidirectional lead screw is rotatably installed at the other end inside the adjusting groove, and the upper ends of the two groups of pressing plates are threadedly connected to the outside of the bidirectional lead screw. The two groups of pressing plates are symmetrically arranged.

[0017] Optionally, a synchronous groove is formed at the center on the outside of the moving wheel. An installation shell is fixedly installed on the outside of the fixed shell, and a connecting groove is formed at the bottom of the installation shell. A first synchronous mechanism is arranged inside the connecting groove, and the first synchronous mechanism is in transmission connection with the moving wheel through the synchronous groove. The end of the first synchronous mechanism is in transmission connection with a transmission rod. One end of the transmission rod is fixedly installed with a rotating disk. One end on one side of the rotating disk is fixedly installed with a connecting shaft. One end of the lifting seat penetrates through one side of one group of side mounting plates to the other side, and a lifting plate is fixedly installed at one end of the lifting seat. A hollow shell is fixedly installed at one end of the upper surface of the lifting plate. The connecting shaft is movably arranged inside the hollow shell.

[0018] An arc complementary composite welding method, using the above-mentioned thick plate laser-arc complementary composite welding device based on the energy siphon effect, includes the following steps:

[0019] Step 1: Turn on the arc welding machine and the laser generator in sequence, and install a wire feeding wheel in the wire feeding shell;

[0020] Step 2: Pass one end of the welding wire through the inside of the wire feeding shell, the inside of the connecting seat, and the inside of the wire feeding pipe to the bottom of the positioning seat in sequence. At the same time, adjust the two groups of adjusting rods to both sides of the welding wire respectively, and bend the section of the welding wire about to melt into a snake shape according to the width of the weld joint gap of the workpiece;

[0021] Step 3: Adjust the height of the arc welding torch according to the welding position;

[0022] Step 4: Determine the defocusing amount, laser power, wire feeding speed, welding current, and welding voltage of the arc welding machine according to the width of the weld joint gap of the workpiece and in combination with the size of the base material to be welded;

[0023] Step 5: Adjust the angles and positions of the laser welding head and the arc welding torch in sequence according to the set defocusing amount and wire feeding speed;

[0024] Step 6: Adjust the variable speed gear set according to the width of the weld joint gap of the workpiece to realize the adjustment of the repeated horizontal movement speed of the wire feeding pipe. At the same time, adjust the position of the other end of the connecting rod on the rotating disk according to the width of the weld joint gap of the workpiece, and ensure that the moving wheel is in contact with the upper surface of the workpiece to ensure that the moving wheel can move on the workpiece;

[0025] Step 7: Operate and start the high-power laser and arc welding machine to start laser arc synchronous welding.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. Through the cooperation of the repeated driving assembly and the bending assembly, the welding wire can be bent repeatedly during wire feeding, so that it can evenly fill the gap in the weldment. Therefore, there is no need to swing the arc welding gun to adjust the wire feeding position, thereby further improving the quality of arc laser hybrid welding.

[0028] 2. Through the design of the pressing component, the pressing component can press down and shape the bent welding wire to avoid the springback of the welding wire after bending, thereby ensuring the shaping of the welding wire after bending and improving the quality of arc laser hybrid welding.

[0029] 3. Through the design of the transmission component, the transmission component contacts the upper surface of the weldment. As the arc welding gun and the laser welding head move, the moving wheel rolls, thereby driving the drive component repeatedly to achieve non-electric bending of the welding wire. Therefore, while improving the welding quality, it also saves a certain amount of electricity costs.

[0030] 4. Through the design that the transmission assembly is respectively connected to the pressing assembly and the repeated driving assembly, the moving wheel drives the pressing assembly and the repeated driving assembly at the same time while rolling, which can ensure that the pressing assembly and the repeated driving assembly move synchronously, thereby ensuring the rapid shaping of the welding wire after bending.

[0031] 5. Through the design of the speed-changing gear set, the frequency of the moving wheel transmission repetitive driving assembly can be adjusted according to the depth of the weld gap, thereby ensuring the uniformity of the welding wire bending in different weld gaps.

[0032] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure provided by the present invention;

[0034] Figure 2 is a schematic diagram of a wire feeding housing provided by the present invention;

[0035] Figure 3 is a schematic diagram of the welding wire provided by the present invention;

[0036] Figure 4 is a schematic diagram of a connecting socket provided by the present invention;

[0037] Figure 5 is a schematic diagram of a rotating disk provided by the present invention;

[0038] Figure 6 is a schematic diagram of the connecting rod provided by the present invention;

[0039] Figure 7 is a schematic diagram of the commutation gear set provided by the present invention;

[0040] Figure 8 is a schematic diagram of the speed change gear set provided by the present invention;

[0041] Figure 9 is a schematic diagram of the pressing plate provided by the present invention;

[0042] Figure 10 is a schematic diagram of the rotating disk provided by the present invention;

[0043] Figure 11 is a schematic diagram of the driving gear provided by the present invention;

[0044] Figure 12 is a schematic diagram of the stabilizing sleeve provided by the present invention;

[0045] Figure 13 is a schematic diagram of the first extension plate provided by the present invention.

[0046] In the figure: 1, mounting sleeve; 2, composite welding mechanism; 3, connecting mechanism; 4, wire feeding shell; 5, welding wire; 6, wire feeding pipe; 7, cover plate; 8, fastening bolt; 9, bending assembly; 10, repeated driving assembly; 11, pressing down assembly; 12, transmission assembly; 13, positioning sleeve; 14, fixing bolt; 15, adjusting slide plate; 16, positioning seat; 17, mounting shell; 18, stabilizing sleeve; 19, side mounting plate; 20, bidirectional lead screw; 21, adjusting wheel; 22, wire feeding wheel; 23, connecting shaft; 201, arc welding machine; 202, high-power laser; 203, laser welding head; 204, arc welding torch; 301, rotating sleeve; 302, lead screw adjusting mechanism; 901, bearing seat; 902, adjusting rod; 903, adjusting tooth plate; 904, driving gear; 905, linkage sleeve; 906, linkage rod; 101, connecting seat; 102, moving sleeve; 103, sliding seat; 104, positioning shell; 105, connecting rod; 106, rotating disk; 107, commutation gear set; 1101, pressing plate; 1102, rotating disk; 1103, transmission rod; 1104, lifting plate; 1105, lifting seat; 1106, first synchronization mechanism; 1107, hollow shell; 1108, first extension plate; 1109, second extension plate; 1201, transmission gear; 1202, bevel gear transmission mechanism; 1203, second synchronization mechanism; 1204, fixing shell; 1205, moving wheel; 1206, speed change gear set. Detailed implementation manners

[0047] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0048] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0049] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0050] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0051] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0052] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0053] like Figures 1 to 13 As shown, a thick plate laser-arc complementary hybrid welding device based on energy siphon effect provided by an embodiment of the present invention includes a hybrid welding mechanism 2 and a wire feeding wheel 22, the hybrid welding mechanism 2 is composed of an arc welding machine 201, a high-power laser 202, a laser welding head 203 and an arc welding gun 204, the high-power laser 202 and the laser welding head 203 are used in conjunction with each other, the arc welding machine 201 and the arc welding gun 204 are used in conjunction with each other, the outer fixed sleeve of the laser welding head 203 is provided with a mounting sleeve 1, the arc welding gun 204 is arranged on one side of the laser welding head 203 through the mounting sleeve 1, the outer end of the mounting sleeve 1 away from the arc welding gun 204 is movably connected with a wire feeding housing 4, the wire feeding wheel 22 is arranged inside the wire feeding housing 4, and also includes:

[0054] A repeated driving component 10 is arranged at the bottom of the wire feeding housing 4, and a wire feeding tube 6 is movably connected to the bottom of the wire feeding housing 4. The wire feeding tube 6 is transmission-connected to the repeated driving component 10, so that the wire feeding tube 6 is repeatedly horizontally moved at the bottom of the wire feeding housing 4 by the repeated driving component 10;

[0055] The outside of the wire feeding wheel 22 is wound with a welding wire 5;

[0056] like Figures 1 to 13 As shown, due to the design that the wire feeding tube 6 is repeatedly driven by the assembly 10 to move horizontally at the bottom of the wire feeding housing 4, the welding wire 5 can be preliminarily adjusted in position.

[0057] The transmission component 12 is in transmission connection with the reciprocating drive component 10, and the transmission component 12 is movably connected to the wire feeding housing 4. The transmission component 12 is used to support the wire feeding housing 4. A positioning seat 16 is correspondingly arranged at the bottom of the wire feeding housing 4, and the positioning seat 16 is fixedly connected to the transmission component 12; The bending component 9 is arranged on one side of the positioning seat 16. The bending component 9 is composed of two groups of adjusting rods 902 and a bending mechanism. The bending mechanism is in transmission connection with the wire feeding tube 6, and both groups of adjusting rods 902 are in transmission connection with the bending mechanism, so that the two groups of adjusting rods 902 approach or move away from each other through the bending mechanism;

[0058] As Figures 1 to 13 shown, due to the design that the two groups of adjusting rods 902 approach or move away from each other through the bending mechanism, when the two groups of adjusting rods 902 approach each other, the welding wire 5 can be bent, so as to realize the bending of the welding wire 5 and be evenly laid in the weld joint gap of the workpiece. Therefore, the welding quality is effectively improved.

[0059] The pressing component 11 is arranged on the other side of the positioning seat 16. The pressing component 11 is in transmission connection with the transmission component 12, so that the pressing component 11 is arranged to move up and down on the other side of the positioning seat 16 through the transmission component 12.

[0060] As Figures 1 to 13 shown, due to the design that the pressing component 11 is arranged on the other side of the positioning seat 16, the welding wire 5 after being bent by the two groups of adjusting rods 902 will be pressed and shaped once by the pressing component 11, so that the welding wire 5 can be prevented from rebounding and restoring, resulting in a smaller bending degree and reducing the welding quality.

[0061] Due to the design that both the pressing component 11 and the reciprocating drive component 10 are in transmission connection with the transmission component 12, after the welding wire 5 is bent, the pressing component 11 will also press down synchronously. Therefore, in cooperation with the movement of the arc laser composite welding mechanism 2, the welding wire 5 can be ensured to be evenly and stably laid in the weld joint gap of the workpiece. Therefore, the effect of effectively improving the welding quality is achieved.

[0062] Further, the reciprocating drive component 10 includes a connecting seat 101 and a moving sleeve 102. The connecting seat 101 is rotatably installed at the bottom of the wire feeding housing 4. The lower end of one side of the wire feeding housing 4 is threadedly connected with a fastening bolt 8. The connecting seat 101 is fixedly arranged with the wire feeding housing 4 through the fastening bolt 8. The connecting seat 101 is hollow. The wire feeding tube 6 is located inside the connecting seat 101. Both ends of the bottom of the connecting seat 101 are fixedly installed with positioning shells 104. Sliding grooves are respectively opened on the opposite sides of the two groups of positioning shells 104. Sliding seats 103 are respectively slidably connected inside the two groups of sliding grooves. The moving sleeve 102 is fixedly installed between the two groups of sliding seats 103, and the moving sleeve 102 is fixedly sleeved outside the wire feeding tube 6;

[0063] As Figures 1 to 13As shown, due to the design that the connecting seat 101 is fixedly arranged with the wire feeding pipe 6 through the fastening bolt 8, the angle of the connecting seat 101 can be rotated and fixed. Therefore, the horizontal reciprocating movement track of the wire feeding pipe 6 can be changed according to the connecting seat 101, so as to make corresponding adjustments according to the requirements of the weldment gap.

[0064] Furthermore, the reciprocating driving assembly 10 further includes two groups of rotating disks 106. Positioning sleeves 13 are rotatably sleeved on the outer sides of the two groups of rotating disks 106, and the positioning sleeves 13 are fixedly connected with the positioning shell 104. A reversing gear set 107 is arranged between the two groups of rotating disks 106, so that the two groups of rotating disks 106 are arranged to rotate in opposite directions through the reversing gear set 107. One ends of the two groups of connecting rods 105 on the sides where the two groups of rotating disks 106 are far away from each other are rotatably connected, and one ends of the two groups of connecting rods 105 are respectively rotatably connected with the two groups of sliding seats 103, and one end of the connecting rod 105 penetrates through the outer side of the positioning shell 104 to the inside of the sliding groove;

[0065] As Figures 1 to 13 shown, through the mutual cooperation of the two groups of rotating disks 106 and the two groups of connecting rods 105, and the cooperation of the rotating disk 106 with the connecting rod 105 and the sliding seat 103, a rotary reciprocating linear motion can be realized, so as to complete the horizontal reciprocating motion of the wire feeding pipe 6.

[0066] It should be noted that, as Figure 7 shown, the above-mentioned reversing gear set 107 can be composed of three identical gears on the upper part and two identical gears on the lower part. Using multiple gears to realize the synchronous reverse rotation of the two groups of rotating disks 106 is an existing conventional technical means, and those skilled in the art should know how to install the five groups of gears to realize the synchronous reverse rotation of the two groups of rotating disks 106. Therefore, the present invention will not be elaborated herein.

[0067] It is worth noting that by designing the mutual cooperation of the two groups of rotating disks 106 and the two groups of connecting rods 105, controlling the moving sleeve 102 to drive the wire feeding pipe 6 to move repeatedly, and the two groups of sliding seats 103 sliding symmetrically and synchronously, the more stable movement of the wire feeding pipe 6 can be realized.

[0068] Furthermore, chutes are opened on the sides where the two groups of rotating disks 106 are far away from each other, and adjusting slide plates 15 are slidably connected inside the chutes. Threaded holes are opened at one ends of one sides of the adjusting slide plates 15, and fixing bolts 14 are connected inside the threaded holes through threads. Thus, the adjusting slide plates 15 are fixedly arranged with the rotating disks 106 through the fixing bolts 14, and the other ends of the connecting rods 105 are rotatably installed at the other ends of one sides of the adjusting slide plates 15;

[0069] As Figures 1 to 13As shown in the figure, the position of the connecting rod 105 on the rotating disk 106 can be adjusted by adjusting the sliding plate 15, so that the repeated movement area of the connecting rod 105 cooperating with the rotating disk 106 to control the wire feeding pipe 6 can be adjusted according to the width of the weldment gap. Therefore, the wire feeding mechanism of the present invention is applicable to weldment gaps in multiple scenarios.

[0070] Furthermore, the transmission assembly 12 includes a moving wheel 1205 and a fixed housing 1204. The fixed housing 1204 is fixedly connected to the positioning sleeve 13. A transmission slot is opened at the lower end of one side of the fixed housing 1204. A second synchronization mechanism 1203 is arranged inside the transmission slot. A speed change gear set 1206 is arranged at the lower end of one side of the fixed housing 1204, and the speed change gear set 1206 is arranged between the second synchronization mechanism 1203 and the moving wheel 1205. Thus, the moving wheel 1205 is in transmission connection with the second synchronization mechanism 1203 through the speed change gear set 1206. The upper end of the second synchronization mechanism 1203 is in transmission connection with a bevel gear transmission mechanism 1202. The bevel gear transmission mechanism 1202 is arranged inside the transmission slot, and the end of the bevel gear transmission mechanism 1202 is in transmission connection with a transmission gear 1201. A docking slot is opened at the upper end of one side of the fixed housing 1204, and the inside of the docking slot communicates with the inside of the transmission slot. The transmission gear 1201 is rotatably installed inside the docking slot. A plurality of groups of tooth grooves are opened on the outer circumference of one of the rotating disks 106, and one of the rotating disks 106 is in meshing connection with the transmission gear 1201 through the tooth grooves;

[0071] As Figures 1 to 13 shown, through the design of the moving wheel 1205, the bevel gear transmission mechanism 1202, the second synchronization mechanism 1203 and the transmission gear 1201, when the moving wheel 1205 contacts the upper surface of the weldment, during the process of moving welding by the arc laser composite welding mechanism 2, the moving wheel 1205 can drive the two rotating disks 106 to rotate simultaneously through the bevel gear transmission mechanism 1202, the second synchronization mechanism 1203 and the transmission gear 1201, control the horizontal repeated movement of the wire feeding pipe 6, and perform the work of bending the welding wire 5. Therefore, without additionally designing a power driving device, the bending of the welding wire 5 can be realized, thereby reducing the cost used for bending the welding wire 5 to a certain extent and improving the welding quality.

[0072] Exemplarily, as Figure 8 shown, the above-mentioned speed change gear set 1206 can be used by adopting a speed change gear structure, and the speed change gear set 1206 has already become a mature existing speed change technology. Those skilled in the art should know how to install and use the speed change gear set 1206 to realize the driving of the second synchronization mechanism 1203 by the moving wheel 1205. Therefore, the present invention will not be elaborated herein.

[0073] It should be noted that, as Figure 8 shown, Figure 8The structure located on the left side of the moving wheel 1205 is the adjustment structure of the speed change gear set 1206. Those skilled in the art should know how to install and use it. Therefore, the present invention will not elaborate here.

[0074] Through the design of the speed change gear set 1206, the frequency of the repeated driving of the moving wheel 1205 for the driving assembly 10 can be adjusted according to the depth of the gap between the welded parts, thereby ensuring the uniformity of the bending of the welding wire 5 in different gaps between the welded parts.

[0075] Furthermore, the bending mechanism includes a bearing seat 901 and a driving gear 904. The bearing seat 901 is fixedly installed on one side of the positioning seat 16. A driving groove is formed inside the bearing seat 901. The driving gear 904 is rotatably installed at the center inside the driving groove. And both sides of the driving gear 904 are meshed with an adjusting tooth plate 903. Both groups of adjusting tooth plates 903 are slidably installed inside the driving groove. And the ends of the two groups of adjusting tooth plates 903 away from each other are respectively fixedly connected to the two groups of adjusting rods 902. The lower ends of the two groups of adjusting rods 902 are arranged at the same horizontal level; One end of one group of adjusting tooth plates 903 is fixedly installed with a linkage rod 906. And one end of the linkage rod 906 penetrates through the inside of the driving groove to the outside of the bearing seat 901. One end of the linkage rod 906 is fixedly installed with a linkage sleeve 905. The linkage sleeve 905 is fixedly sleeved on the outside of the wire feeding pipe 6. A stabilizing hole is formed at one end of the upper surface of the positioning seat 16. And a stabilizing sleeve 18 is slidably connected inside the stabilizing hole. The stabilizing sleeve 18 is fixedly sleeved on the outside of the wire feeding pipe 6. And one end of the welding wire 5 sequentially passes through the inside of the wire feeding shell 4, the inside of the connecting seat 101, and the inside of the wire feeding pipe 6 to the bottom of the positioning seat 16;

[0076] As Figures 1 to 13 shown, through the design that the linkage sleeve 905 is fixedly sleeved on the outside of the wire feeding pipe 6, when the wire feeding pipe 6 moves horizontally back and forth, the mutual separation or mutual approach movement of the two groups of adjusting rods 902 can be realized through one group of adjusting tooth plates 903. Thus, the two groups of adjusting rods 902 perform the bending work on the exposed wire feeding pipe 6.

[0077] Furthermore, the pressing-down assembly 11 includes two pressing plates 1101 and a lifting seat 1105. Both ends on the other side of the positioning seat 16 are fixedly installed with side mounting plates 19. The lifting seat 1105 is slidably installed between the two groups of side mounting plates 19. And an adjusting groove is formed at the bottom of the lifting seat 1105. One end inside the adjusting groove is rotatably connected with an adjusting wheel 21. The center of one side of the adjusting wheel 21 is fixedly installed with a bidirectional lead screw 20. One end of the bidirectional lead screw 20 is rotatably installed at the other end inside the adjusting groove. And the upper ends of the two groups of pressing plates 1101 are both threadedly connected to the outside of the bidirectional lead screw 20. The two groups of pressing plates 1101 are symmetrically arranged;

[0078] As Figures 1 to 13As shown, since the upper ends of the two sets of pressure plates 1101 are connected to the outside of the bidirectional screw rod 20 by threads, the two sets of pressure plates 1101 can be moved away from each other, so as to be adjusted according to the gaps on different weldments, ensuring that the bent welding wire 5 is effectively pressed into the gap of the weldment by the pressure plates 1101 and ensuring that the welding wire 5 is shaped after bending.

[0079] Specifically, Figures 1 to 13 As shown, a first extension plate 1108 is fixedly installed at the lower end of one side of one group of pressure plates 1101, and a storage groove is opened at the lower end of one side of the other group of pressure plates 1101, and a second extension plate 1109 is slidably connected inside the storage groove, and the first extension plate 1108 is slidably sleeved on the outside of the second extension plate 1109.

[0080] Through the mutual coordination design of the first extension plate 1108 and the second extension plate 1109, when the distance between the two groups of pressure plates 1101 is changed, the first extension plate 1108 and the second extension plate 1109 can fill the gap between the two groups of pressure plates 1101, thereby effectively ensuring the comprehensive downward pressing of the bent welding wire 5.

[0081] Further, a synchronization groove is provided at the center of the outer side of the moving wheel 1205, a mounting shell 17 is fixedly installed on the outer side of the fixed shell 1204, and a connecting groove is provided at the bottom of the mounting shell 17, a first synchronization mechanism 1106 is provided inside the connecting groove, and the first synchronization mechanism 1106 is transmission-connected to the moving wheel 1205 through the synchronization groove, a transmission rod 1103 is transmission-connected to the end of the first synchronization mechanism 1106, a rotating disk 1102 is fixedly installed at one end of the transmission rod 1103, a connecting shaft 23 is fixedly installed at one end of one side of the rotating disk 1102, one end of the lifting seat 1105 passes through one side of one group of side mounting plates 19 to the other side, and a lifting plate 1104 is fixedly installed at one end of the lifting seat 1105, a hollow shell 1107 is fixedly installed at one end of the upper surface of the lifting plate 1104, and the connecting shaft 23 is movably arranged inside the hollow shell 1107;

[0082] like Figures 1 to 13 As shown, through the design that the connecting shaft 23 is movably arranged inside the hollow shell 1107, when the moving wheel 1205 rolls, through the first synchronization mechanism 1106, the transmission rod 1103 and the rotating disk 1102, the connecting shaft 23 rotates around the rotating disk 1102, so that the hollow shell 1107 performs a lifting movement, so that the hollow shell 1107 drives the lifting seat 1105, and realizes the repeated up and down movement of the two groups of pressure plates 1101, so that the pressure plate 1101 can continuously shape the bent welding wire 5 and push the welding wire 5 into the gap on the weldment.

[0083] Specifically, Figures 1 to 2 As shown, a connection mechanism 3 is provided between the mounting sleeve 1 and the wire feeding housing 4, and the wire feeding housing 4 is moved close to or away from the mounting sleeve 1 through the connection mechanism 3;

[0084] Specifically, as Figures 1 to 2 shown, the connecting mechanism 3 in the above consists of a rotating sleeve 301 and a lead screw adjusting mechanism 302. The rotating sleeve 301 is rotatably sleeved outside the mounting sleeve 1, and the lead screw adjusting mechanism 302 is arranged at one outer end of the rotating sleeve 301. The wire feeding shell 4 is in transmission connection with the lead screw adjusting mechanism 302.

[0085] Through the design of the lead screw adjusting mechanism 302 and the rotating sleeve 301, the position of the welding wire 5 can be correspondingly adjusted according to the position of the gap of the welded part, and the wire feeding position of the welding wire 5 can be correspondingly adjusted according to the material of the welded part and the welding energy of the laser welding head 203 and the arc welding torch 204, thereby further improving the practicability of the wire feeding mechanism of the present invention.

[0086] Specifically, as Figure 3 shown, a cover plate 7 is rotatably arranged on one side of the wire feeding shell 4, and the lower end of one side of the cover plate 7 is engaged with the lower end of one side of the wire feeding shell 4. After the wire feeding wheel 22 is placed into the wire feeding shell 4, the one side of the wire feeding shell 4 can be blocked by the cover plate 7 to prevent the wire feeding wheel 22 from being exposed when the wire feeding wheel 22 performs wire feeding work through the electric driving mechanism inside the wire feeding shell 4, thus generating potential safety hazards.

[0087] The embodiment of the present invention also provides an arc complementary composite welding method, which adopts the above-mentioned thick plate laser-arc complementary composite welding device based on the energy siphon effect, and includes the following steps:

[0088] Step 1: Turn on the arc welding machine 201 and the laser generator in sequence, and install the wire feeding wheel 22 in the wire feeding shell 4;

[0089] Step 2: Pass one end of the welding wire 5 through the inside of the wire feeding shell 4, the inside of the connecting seat 101, and the inside of the wire feeding tube 6 to the bottom of the positioning seat 16 in sequence. At the same time, adjust the two groups of adjusting rods 902 to both sides of the welding wire 5 respectively, and bend the section of the welding wire 5 about to melt into a snake shape according to the width of the gap of the welded part;

[0090] Step 3: Adjust the height of the arc welding torch 204 according to the welding position;

[0091] Step 4: Determine the defocus amount, laser power, wire feeding speed, welding current, and welding voltage of the arc welding machine according to the width of the gap of the welded part and the size of the base metal to be welded;

[0092] Step 5: Adjust the angles and positions of the laser welding head 203 and the arc welding torch 204 in sequence according to the set defocus amount and wire feeding speed;

[0093] Step 6: Adjust the speed-changing gear set 1206 according to the width of the weldment gap, so as to adjust the repeated horizontal movement speed of the wire feeding pipe 6. At the same time, adjust the position of the other end of the connecting rod 105 on the rotating disk 106 according to the width of the weldment gap, and ensure that the moving wheel 1205 contacts the upper surface of the weldment to ensure that the moving wheel 1205 can move on the weldment.

[0094] Step 7: Operate and start the high-power laser 202 and the arc welding machine 201 to start laser-arc synchronous welding.

[0095] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0096] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thick plate laser-arc complementary hybrid welding device based on energy siphon effect, comprising a hybrid welding mechanism (2) and a wire feeding wheel (22), wherein the hybrid welding mechanism (2) is composed of an arc welding machine (201), a high-power laser (202), a laser welding head (203) and an arc welding gun (204), wherein the high-power laser (202) and the laser welding head (203) are used in coordination with each other, and the arc welding machine (201) and the arc welding gun (204) are used in coordination with each other, wherein an outer fixed sleeve of the laser welding head (203) is provided with a mounting sleeve (1), and the arc welding gun (204) is arranged on one side of the laser welding head (203) through the mounting sleeve (1), and an end of the outer side of the mounting sleeve (1) away from the arc welding gun (204) is movably connected to a wire feeding housing (4), and the wire feeding wheel (22) is arranged inside the wire feeding housing (4), characterized in that: Also includes: A repetitive driving component (10), the repetitive driving component (10) being arranged at the bottom of a wire feeding housing (4), the bottom of the wire feeding housing (4) being movably connected to a wire feeding tube (6), the wire feeding tube (6) being transmission-connected to the repetitive driving component (10), so that the wire feeding tube (6) is repeatedly horizontally moved at the bottom of the wire feeding housing (4) by the repetitive driving component (10); A transmission assembly (12), the transmission assembly (12) being transmission-connected to the repetitive drive assembly (10), and the transmission assembly (12) being movably connected to the wire feeding housing (4), the transmission assembly (12) being used to support the wire feeding housing (4), a positioning seat (16) being correspondingly provided at the bottom of the wire feeding housing (4), and the positioning seat (16) being fixedly connected to the transmission assembly (12); A bending assembly (9), the bending assembly (9) being arranged on one side of the positioning seat (16), the bending assembly (9) being composed of two groups of adjusting rods (902) and a bending mechanism, the bending mechanism being transmission-connected to the wire feeding tube (6), the two groups of adjusting rods (902) being transmission-connected to the bending mechanism, so that the two groups of adjusting rods (902) are moved closer to or farther from each other through the bending mechanism; A pressing assembly (11), the pressing assembly (11) being arranged on the other side of the positioning seat (16), the pressing assembly (11) being in transmission connection with the transmission assembly (12), so that the pressing assembly (11) is arranged to move up and down on the other side of the positioning seat (16) through the transmission assembly (12); The repetitive driving assembly (10) comprises a connecting seat (101) and a movable sleeve (102); the connecting seat (101) is rotatably mounted on the bottom of the wire feeding housing (4); a fastening bolt (8) is threadedly connected to the lower end of one side of the wire feeding housing (4); the connecting seat (101) and the wire feeding housing (4) are fixedly arranged with each other via the fastening bolt (8); the connecting seat (101) is hollow; the wire feeding tube (6) is located inside the connecting seat (101); positioning shells (104) are fixedly mounted at both ends of the bottom of the connecting seat (101); sliding grooves are provided on opposite sides of two groups of the positioning shells (104); sliding seats (103) are slidably connected inside the two groups of the sliding grooves; the movable sleeve (102) is fixedly mounted between the two groups of sliding seats (103); and the movable sleeve (102) is fixedly sleeved on the outside of the wire feeding tube (6).

2. The thick plate laser-arc complementary hybrid welding device based on energy siphon effect according to claim 1 is characterized by: The repetitive driving assembly (10) further comprises two groups of rotating disks (106), the outer sides of the two groups of rotating disks (106) are both rotatably sleeved with positioning sleeves (13), and the positioning sleeves (13) are fixedly connected to the positioning shell (104), and a reversing gear set (107) is arranged between the two groups of rotating disks (106), so that the two groups of rotating disks (106) are arranged to rotate in opposite directions through the reversing gear set (107), and one end of the two groups of rotating disks (106) on the side away from each other is rotatably connected to a connecting rod (105), and one end of the two groups of connecting rods (105) is respectively rotatably connected to the two groups of sliding seats (103), and one end of the connecting rod (105) passes through the outer side of the positioning shell (104) to the inside of the sliding groove.

3. The thick plate laser-arc complementary hybrid welding device based on energy siphon effect according to claim 2 is characterized by: A slide groove is provided on the side of the two groups of rotating disks (106) that are away from each other, and an adjusting slide plate (15) is slidably connected inside the slide groove. A threaded hole is provided at one end of one side of the adjusting slide plate (15), and a fixing bolt (14) is threadedly connected inside the threaded hole, so that the adjusting slide plate (15) and the rotating disk (106) are fixed to each other through the fixing bolt (14), and the other end of the connecting rod (105) is rotatably mounted on the other end of one side of the adjusting slide plate (15).

4. The thick plate laser-arc complementary hybrid welding device based on energy siphon effect according to claim 3 is characterized by: The transmission assembly (12) comprises a moving wheel (1205) and a fixed shell (1204); the fixed shell (1204) is fixedly connected to the positioning sleeve (13); a transmission groove is provided at the lower end of one side of the fixed shell (1204); a second synchronization mechanism (1203) is arranged inside the transmission groove; a speed change gear set (1206) is provided at the lower end of one side of the fixed shell (1204); and the speed change gear set (1206) is arranged between the second synchronization mechanism (1203) and the moving wheel (1205), so that the moving wheel (1205) is connected to the second synchronization mechanism (1203) via the speed change gear set (1206). The second synchronizing mechanism (1203) is connected to a bevel gear transmission mechanism (1202) at its upper end, the bevel gear transmission mechanism (1202) is arranged inside the transmission groove, and the end of the bevel gear transmission mechanism (1202) is connected to a transmission gear (1201). A docking groove is provided at the upper end of one side of the fixed shell (1204), and the interior of the docking groove is communicated with the interior of the transmission groove. The transmission gear (1201) is rotatably installed inside the docking groove. A plurality of groups of tooth grooves are provided around the outer side of one group of rotating disks (106), and one group of rotating disks (106) is meshedly connected with the transmission gear (1201) through the tooth grooves.

5. The thick plate laser-arc complementary hybrid welding device based on energy siphon effect according to claim 4 is characterized in that: The bending mechanism comprises a bearing seat (901) and a driving gear (904); the bearing seat (901) is fixedly mounted on one side of the positioning seat (16); a driving slot is provided inside the bearing seat (901); the driving gear (904) is rotatably mounted at the center of the driving slot; and both sides of the driving gear (904) are meshedly connected with adjustment tooth plates (903); two groups of the adjustment tooth plates (903) are slidably mounted inside the driving slot; and ends of the two groups of adjustment tooth plates (903) that are away from each other are fixedly connected to two groups of adjustment rods (902), respectively; and the lower ends of the two groups of adjustment rods (902) are arranged at the same level.

6. The thick plate laser-arc complementary hybrid welding device based on energy siphon effect according to claim 5 is characterized by: A linkage rod (906) is fixedly mounted on one end of one set of adjustment tooth plates (903), and one end of the linkage rod (906) passes through the interior of the driving groove to the outside of the bearing seat (901); a linkage sleeve (905) is fixedly mounted on one end of the linkage rod (906); the linkage sleeve (905) is fixedly sleeved on the outside of the wire feeding tube (6); a stabilizing hole is opened on one end of the upper surface of the positioning seat (16), and a stabilizing sleeve (18) is slidably connected inside the stabilizing hole; the stabilizing sleeve (18) is fixedly sleeved on the outside of the wire feeding tube (6); a welding wire (5) is wound and connected to the outside of the wire feeding wheel (22), and one end of the welding wire (5) passes through the interior of the wire feeding shell (4), the interior of the connecting seat (101) and the interior of the wire feeding tube (6) in sequence to the bottom of the positioning seat (16).

7. The thick plate laser-arc complementary hybrid welding device based on energy siphon effect according to claim 6 is characterized by: The pressing assembly (11) comprises two groups of pressing plates (1101) and a lifting seat (1105), the two ends of the other side of the positioning seat (16) are fixedly mounted with side mounting plates (19), the lifting seat (1105) is slidably mounted between the two groups of side mounting plates (19), and an adjustment slot is provided at the bottom of the lifting seat (1105), one end of the adjusting slot is rotatably connected to an adjusting wheel (21), a bidirectional screw rod (20) is fixedly mounted at the center of one side of the adjusting wheel (21), one end of the bidirectional screw rod (20) is rotatably mounted to the other end of the adjusting slot, and the upper ends of the two groups of pressing plates (1101) are both connected to the outer side of the bidirectional screw rod (20) by threads, and the two groups of pressing plates (1101) are symmetrically arranged.

8. The thick plate laser-arc complementary hybrid welding device based on energy siphon effect according to claim 7 is characterized by: A synchronization groove is provided at the center of the outer side of the moving wheel (1205); a mounting shell (17) is fixedly mounted on the outer side of the fixed shell (1204); a connecting groove is provided at the bottom of the mounting shell (17); a first synchronization mechanism (1106) is provided inside the connecting groove; the first synchronization mechanism (1106) is transmission-connected to the moving wheel (1205) via the synchronization groove; a transmission rod (1103) is transmission-connected at the end of the first synchronization mechanism (1106); a rotating disk (1102) is fixedly mounted on one end of the transmission rod (1103); a connecting shaft (23) is fixedly mounted on one end of one side of the rotating disk (1102); one end of the lifting seat (1105 passes through one side of one set of side mounting plates (19) to the other side; a lifting plate (1104) is fixedly mounted on one end of the lifting seat (1105); a hollow shell (1107) is fixedly mounted on one end of the upper surface of the lifting plate (1104); and the connecting shaft (23) is movably arranged inside the hollow shell (1107).

9. An arc complementary hybrid welding method, using the thick plate laser-arc complementary hybrid welding device based on energy siphon effect as claimed in claim 8, characterized in that: The steps include: Step 1: Turn on the arc welding machine (201) and the laser generator in sequence, and install the wire feeding wheel (22) in the wire feeding housing (4); Step 2: Pass one end of the welding wire (5) through the interior of the wire feeding housing (4), the interior of the connecting seat (101) and the interior of the wire feeding tube (6) to the bottom of the positioning seat (16), and at the same time adjust the two sets of adjustment rods (902) to the two sides of the welding wire (5) respectively, and bend the section of the welding wire (5) that is about to melt into a serpentine state according to the width of the weld gap; Step 3: adjusting the height of the arc welding gun (204) according to the welding position; Step 4: Determine the defocusing amount, laser power, wire feeding speed, welding current, and welding voltage of the arc welding machine according to the gap width of the weldment and the size of the base material to be welded; Step 5: adjusting the angles and positions of the laser welding head (203) and the arc welding gun (204) in sequence according to the set defocusing amount and wire feeding speed; Step 6: Adjust the speed change gear set (1206) according to the gap width of the weldment to adjust the repeated horizontal movement speed of the wire feeding tube (6), and at the same time adjust the position of the other end of the connecting rod (105) on the rotating disk (106) according to the gap width of the weldment, and ensure that the moving wheel (1205) is in contact with the upper surface of the weldment, so that the moving wheel (1205) can move on the weldment; Step 7: Operate and start the high-power laser (202) and the arc welding machine (201) to start laser arc synchronous welding.

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