Welding wire feeding device

Abstract

The present invention relates to the technical field of laser welding, and specifically discloses a welding wire feeding device, comprising a mounting assembly, a driving assembly, a transmission assembly, a rotating assembly, an adjusting assembly and a wire feeding assembly; the mounting assembly is used to be connected to a welding machine, the driving assembly is arranged on the mounting assembly, the driving assembly is in transmission connection with the transmission assembly, the transmission assembly is used to make the rotating assembly and one or more wire feeding assemblies arranged on the rotating assembly move circumferentially around a welding gun, an adjusting assembly is arranged between the rotating assembly and the wire feeding assembly, and the adjusting assembly is used to adjust the distance and angle between the wire feeding assembly and the welding gun; through the above arrangement, large-angle adjustment of the wire feeding assembly is achieved, and by arranging more than one wire feeding assembly, different wire feeding assemblies can simultaneously convey welding wire to a position to be welded, which is beneficial to making the heating of the welding wire more uniform and forming a deeper molten pool, which is beneficial to improving the quality and efficiency of laser welding.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a welding wire feeding device. Background Art

[0002] Laser welding generally includes a laser welding gun and a wire feeding structure. The wire feeding structure is used to feed the welding wire to the bottom of the laser welding gun. Then the welding gun melts the welding wire through the high-energy laser it emits, forming a molten pool at the connection position of the two workpieces. After the molten pool cools, it solidifies into a weld, thereby welding the two workpieces together. In order to ensure that the welding wire is fully melted and the quality of the weld is guaranteed, the existing wire feeding structure is connected to a rotating structure. The rotation of the rotating structure enables the wire feeding structure to rotate circumferentially around the welding gun. However, the existing rotating wire feeding structure can generally only realize single wire feeding, that is, the wire feeding structure on the rotating structure is generally set to one, and the welding efficiency is relatively low; and due to the limitation of the rotating structure, the wire feeding structure can only fine-tune the wire feeding angle, and cannot realize a large range of adjustment of the wire feeding angle.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a welding wire feeding device, aiming to solve the problem that the existing welding rotary wire feeder cannot realize large-angle and multi-wire feeding.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A welding wire feeding device comprises a mounting assembly, a driving assembly, a transmission assembly, a rotating assembly, an adjusting assembly and a wire feeding assembly; the mounting assembly is used to connect to a welding machine, the driving assembly is arranged on the mounting assembly, the driving assembly is in transmission connection with the transmission assembly, the transmission assembly is used to make the rotating assembly and one or more wire feeding assemblies arranged on the rotating assembly move circumferentially around a welding gun, the adjusting assembly is arranged between the rotating assembly and the wire feeding assembly, and the adjusting assembly is used to adjust the distance and angle between the wire feeding assembly and the welding gun.

[0007] The welding wire feeding device, wherein the lower surface of the rotating assembly is provided with mounting holes arranged in a circular array, the number of the adjusting assemblies is consistent with the number of the wire feeding assemblies, the adjusting assembly includes a connecting block connected to the corresponding mounting hole, a first connecting strip rotatably connected to the side wall of the connecting block through a first locking piece, a second connecting strip detachably connected to the first connecting strip, and a rotating block rotatably connected to the end of the second connecting strip through a second locking piece, the rotating block is configured as a clamp, a clamping groove is provided in the clamp, and the wire feeding assembly is arranged in the clamping groove.

[0008] The welding wire feeding device, wherein the first connecting strip is provided with more than two threaded holes extending along its length direction, and the second connecting strip is provided with more than two first waist-shaped holes, each of the first waist-shaped holes is provided with a third locking piece, and each end of the third locking piece passes through the corresponding first waist-shaped hole and is threadedly connected to the corresponding threaded hole.

[0009] The welding wire feeding device, wherein a slide groove is provided on the side wall of the first connecting strip facing the second connecting strip, and a slider matched with the slide groove is provided on the side wall of the second connecting strip facing the first connecting strip, and the slider is slidably provided in the slide groove.

[0010] The welding wire feeding device, wherein the driving assembly includes a driving motor and a shaft sleeve, the shaft sleeve is sleeved on the output end of the driving motor; the transmission assembly includes an active bevel gear and a driven bevel gear meshing with the active bevel gear, the shaft sleeve is connected to the middle part of the active bevel gear; the driven bevel gear is arranged in the rotating assembly.

[0011] The welding wire feeding device, wherein the rotating assembly includes a coaxially arranged top plate, an axis, a fixed seat, a deep groove bearing, a bottom plate and a bearing core; the top plate and the axis are integrally formed and the cross-sections of the top plate and the axis are "T"-shaped, the deep groove bearing is sleeved on the outer peripheral wall of the axis, the fixed seat is sleeved on the outer peripheral wall of the deep groove bearing, and the driven bevel gear is surrounded by the outer peripheral wall of the fixed seat; the driven bevel gear, the fixed seat, and the deep groove bearing are respectively arranged on the upper surface of the bottom plate; the bearing core is fixedly arranged at the bottom of the axis, and the bottom plate is arranged on the periphery of the bearing core and is separated from the bearing core.

[0012] The welding wire feeding device described above, wherein the mounting assembly includes a mounting seat, an adjustment seat and a motor seat; the driving assembly is arranged on the motor seat, the upper surface of the motor seat is provided with the adjustment seat, and the upper surface of the adjustment seat is provided with the mounting seat; the mounting seat is provided with a second waist-shaped hole along its length direction, the second waist-shaped hole is provided with a fourth locking piece, and the fourth locking piece is threadedly connected to the adjustment seat; the left and right side walls of the mounting seat are respectively provided with fifth locking pieces, and the fifth locking pieces on both sides are respectively abutted against the corresponding side walls of the adjustment seat.

[0013] The welding wire feeding device, wherein the adjustment seat is provided with a third waist-shaped hole perpendicular to the extension direction of the second waist-shaped hole, the third waist-shaped hole is provided with a sixth locking piece, and the sixth locking piece is threadedly connected to the motor seat; the rear side wall of the adjustment seat is provided with a seventh locking piece, and the seventh locking piece abuts against the rear side wall of the motor seat; the motor seat is provided with a fourth waist-shaped hole with the same extension direction as the third waist-shaped hole, the fourth waist-shaped hole is provided with an eighth locking piece, and the eighth locking piece is threadedly connected to the upper surface of the rotating assembly.

[0014] The welding wire feeding device, wherein the upper surface of the adjustment seat is provided with a first limit groove in the same extension direction as the second waist-shaped hole, the width of the first limit groove is adapted to the width of the bottom of the mounting seat, and the mounting seat is arranged in the first limit groove; the upper surface of the motor seat is provided with a second limit groove in the same extension direction as the third waist-shaped hole and / or the fourth waist-shaped hole, the lower surface of the adjustment seat is provided with a limit block adapted to the shape of the second limit groove, and the limit block is arranged in the second limit groove.

[0015] The welding wire feeding device, wherein the wire feeding assembly includes a conductive nozzle, a copper tube, a sleeve and a core piece; the conductive nozzle, the copper tube and the core piece are connected to each other; the conductive nozzle is arranged toward the bottom of the welding gun, and the inner walls at both ends of the sleeve are respectively provided with internal threads, and the ends of the conductive nozzle and the core piece are respectively provided with external threads adapted to the internal threads, the conductive nozzle and the core piece are respectively threadedly connected to the two ends of the sleeve, and the copper tube is arranged in the sleeve.

[0016] Beneficial effects:

[0017] The present invention provides a welding wire feeding device, which realizes large-angle adjustment of the wire feeding assembly by arranging an installation component for connecting with a welding machine, arranging a driving component and a transmission component for rotating a rotating component, and arranging an adjustment component for adjusting the angle of the wire feeding assembly toward a welding gun and the distance of the wire feeding assembly to the welding gun. By arranging more than one wire feeding assembly, different wire feeding assemblies can simultaneously transport welding wire to a position to be welded, which is beneficial to making the heating of the welding wire more uniform and forming a deeper molten pool, which is beneficial to improving the quality and efficiency of laser welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An exploded view of the welding wire feeding device provided by the present invention.

[0019] Figure 2 Schematic diagram of the structure of the welding wire feeding device Figure 1 .

[0020] Figure 3Schematic diagram of the structure of the welding wire feeding device Figure 2 .

[0021] Figure 4 Schematic diagram of the structure of the adjustment component and wire feeding component Figure 1 .

[0022] Figure 5 Schematic diagram of the structure of the adjustment component and wire feeding component Figure 2 .

[0023] Figure 6 Schematic diagram of the structure of the adjustment component and wire feeding component Figure 3 .

[0024] Figure 7 Schematic diagram of the structure of the welding wire feeding device to hide the wire feeding assembly Figure 1 .

[0025] Figure 8 Schematic diagram of the structure of the welding wire feeding device to hide the wire feeding assembly Figure 2 .

[0026] Fig. 9 The front view of the welding wire feeding device is shown with the wire feeding assembly hidden.

[0027] Fig.10 for Fig. 9 Cross-sectional view of BB.

[0028] Fig.11 for Fig.10 Enlarged view of part A in the middle.

[0029] Fig.12 A cross-sectional view of the wire feed assembly.

[0030] Description of the main component symbols: 1-installation assembly, 11-installation seat, 111-second waist-shaped hole, 112-fourth locking piece, 113-fifth locking piece, 12-adjustment seat, 121-third waist-shaped hole, 122-sixth locking piece, 123-seventh locking piece, 124-first limiting groove, 13-motor seat, 131-fourth waist-shaped hole, 132-eighth locking piece, 133-second limiting groove, 2-drive assembly, 21-drive motor, 22-sleeve, 3-transmission assembly, 31-active bevel gear, 32-driven bevel gear, 4-rotation assembly, 41-top plate, 42-axis, 43-fixed seat, 44-deep groove bearing, 45-chassis, 451-mounting hole, 46-bearing core, 47-protective cover, 5-adjustment assembly, 51-connecting block, 52-first connecting strip, 521-threaded hole, 522-slide groove, 53-second connecting strip, 531-first waist hole, 532-third locking piece, 533-slider, 54-rotating block, 541-clamping groove, 55-first locking piece, 56-second locking piece, 6-wire feeding assembly, 61-conductive nozzle, 62-copper tube, 63-sleeve, 64-core filling piece, 7-sealing cover, 71-heat dissipation strip, 8-sealing plate. DETAILED DESCRIPTION

[0031] The present invention provides a welding wire feeding device. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0032] See also Figure 1-3 The present invention provides a welding wire feeding device, comprising an installation component 1, a drive component 2, a transmission component 3, a rotating component 4, an adjustment component 5 and a wire feeding component 6; the installation component 1 is used to connect with a welding machine, the drive component 2 is arranged on the installation component 1, the drive component 2 is in transmission connection with the transmission component 3, the transmission component 3 is used to make the rotating component 4 and one or more wire feeding components 6 arranged on the rotating component 4 move circumferentially around a welding gun, the adjustment component 5 is arranged between the rotating component 4 and the wire feeding component 6, and the adjustment component 5 is used to adjust the distance and angle between the wire feeding component 6 and the welding gun.

[0033] In practical applications, the mounting assembly 1 is connected to a welding machine so that the welding wire feeding device is arranged on the welding machine. The rotating assembly 4 is arranged as a hollow cylindrical shape as a whole, which is convenient for rotation. A welding gun is arranged in the middle, and the welding gun muzzle of the welding gun is arranged vertically downward. The driving assembly 2 is electrically connected to the electric control assembly. According to the actual welding situation, the running direction, running time, running speed, etc. of the driving assembly 2 are controlled by programming, so as to provide power for the transmission assembly 3. Under the operation of the transmission assembly 3, the rotating assembly 4 is rotated to a certain angle. By arranging an adjustment assembly 5 on the rotating assembly 4, the angle of the wire feeding assembly 6 toward the welding gun and the distance to the welding gun can be adjusted under the action of the adjustment assembly 5, so that the wire feeding assembly 6 can achieve large angle adjustment, which can greatly improve the quality of welding compared with the existing fine adjustment of the angle of the wire feeding assembly 6; and because more than one wire feeding assembly 6 is arranged on the rotating assembly 4, different wire feeding assemblies 6 can simultaneously convey welding wire to the position to be welded, which can greatly improve the efficiency of welding compared with a single wire feeding. Through the above settings, the welding wire is heated more evenly and the molten pool formed is deeper, which is beneficial to improving the quality and efficiency of laser welding.

[0034] See also Figure 1 , Figure 3 Further, the lower surface of the rotating assembly 4 is provided with mounting holes 451 arranged in a circular array, and the number of the adjustment assembly 5 is consistent with the number of the wire feeding assembly 6, see Figure 4-6 The adjusting assembly 5 comprises a connecting block 51 connected to the corresponding mounting hole 451, a first connecting strip 52 rotatably connected to the side wall of the connecting block 51 through a first locking member 55, a second connecting strip 53 detachably connected to the first connecting strip 52, and a rotating block 54 rotatably connected to the end of the second connecting strip 53 through a second locking member 56, wherein the rotating block 54 is configured as a clamp, wherein a clamping groove 541 is configured in the clamp, and the wire feeding assembly 6 is configured in the clamping groove 541. In general, the wire feeding assembly 6 should be symmetrically or equiangularly configured in the corresponding mounting hole 451, for example, two wire feeding assemblies 6 should be configured oppositely, and three wire feeding assemblies 6 should be configured at equal angles, and so on.

[0035] In practical applications, the connecting block 51 can also be detachably connected to the lower surface of the rotating assembly 4 through a locking member. When the angle of the wire feeding assembly 6 needs to be adjusted, the wire feeding assembly 6 is first placed in the clamping groove 541, and the clamping groove 541 is also reduced by the locking member. The wire feeding assembly 6 is first initially fixed, and then the second locking member 56 is loosened according to the angle between the wire feeding assembly 6 and the welding gun, so that the rotating block 54 is rotated around the end of the second connecting strip 53 to a preset angle. After the adjustment is completed, the second locking member 56 can be re-locked; when the distance from the wire feeding assembly 6 to the welding gun needs to be adjusted, the locking member in the clamp is loosened to appropriately enlarge the clamping groove 541, and then the wire feeding assembly 6 is moved away from or closer to the welding gun to adjust the distance of the wire feeding assembly 6. After the adjustment is completed, the clamp can be re-locked. Similarly, since the first connecting strip 52 is also rotatably set on the connecting block 51, the first locking member 55 is used in the same way as the second locking member 56, so the angle of the first connecting strip 52 can also be adjusted. However, in general, in order to provide a reference, the first connecting strip 52 is set parallel to the welding gun, that is, the first connecting strip 52 and the second connecting strip 53 are both set vertically downward.

[0036] See also Figure 4-6Furthermore, the first connecting strip 52 is provided with more than two threaded holes 521 extending along its length direction, and the second connecting strip 53 is provided with more than two first waist-shaped holes 531, each of the first waist-shaped holes 531 is provided with a third locking piece 532, and each end of the third locking piece 532 passes through the corresponding first waist-shaped hole 531 and is threadedly connected with the corresponding threaded hole 521. In this embodiment, the threaded holes 521 are set to three, the first waist-shaped holes 531 are set to two, and the third locking members 532 are also set to two accordingly. Through the above settings, the third locking member 532 can be fixed in any threaded hole 521, so as to adjust the total length of the first connecting bar 52 and the second connecting bar 53. The specific adjustment steps are: when the third locking member 532 located at the top is connected to the threaded hole 521 located at the top, the total length of the first connecting bar 52 and the second connecting bar 53 is the shortest, and when the angle of the rotating block 54 remains unchanged, the distance from the wire feeding assembly 6 to the welding gun is the shortest; when the third locking member 532 located at the bottom is connected to the threaded hole 521 located at the bottom, the total length of the first connecting bar 52 and the second connecting bar 53 is the longest, and when the angle of the rotating block 54 remains unchanged, the distance from the wire feeding assembly 6 to the welding gun is the longest. By setting two third locking members 532, the first connecting bar 52 and the second connecting bar 53 can achieve two-point positioning to prevent the second connecting bar 53 from deviating. By setting the first waist-shaped hole 531, when fine-tuning the second connecting strip 53 in the up and down directions, there is no need to completely separate the third locking piece 532 from the threaded hole 521 every time. The above setting is specifically as follows when in use: the two third locking pieces 532 are respectively loosened from the corresponding threaded holes 521 by a certain distance, so that the second connecting strip 53 can move along the first waist-shaped hole 531. After adjusting the position of the second connecting strip 53, the third locking piece 532 is locked with the thread to fix the second connecting strip 53. The method is easy to use and the adjustment is fast and efficient.

[0037] See also Figure 4-6 Further, a slide groove 522 is provided on the side wall of the first connecting strip 52 facing the second connecting strip 53, and a slider 533 matching the slide groove 522 is provided on the side wall of the second connecting strip 53 facing the first connecting strip 52, and the slider 533 is slidably disposed in the slide groove 522. The slide groove 522 and the slider 533 play a role in positioning and guiding, limiting the movement of the second connecting strip 53 in the left-right direction, so that the second connecting strip 53 can only move in the up-down direction, thereby facilitating the connection of the third locking member 532 with the corresponding threaded hole 521.

[0038] See also Figure 1 and Fig.10Further, the driving assembly 2 includes a driving motor 21 and a sleeve 22, and the sleeve 22 is sleeved on the output end of the driving motor 21; the transmission assembly 3 includes an active bevel gear 31 and a driven bevel gear 32 meshing with the active bevel gear 31, and the sleeve 22 is connected to the middle of the active bevel gear 31; the driven bevel gear 32 is arranged in the rotating assembly 4. Through the forward or reverse rotation of the driving motor 21, the active bevel gear 31 connected thereto rotates clockwise or counterclockwise, and then the active bevel gear 31 drives the driven bevel gear 32 to rotate clockwise or counterclockwise synchronously by a certain angle. The above transmission method has a simple structure. Compared with the existing conveyor belt transmission, it has good transmission stability, high operating accuracy, and high transmission efficiency, which is conducive to making the wire feeding assembly 6 accurately reach the preset position, thereby improving the welding accuracy; and it is highly compact, which is conducive to reducing the volume of the welding wire feeding device.

[0039] See also Figure 1 , Fig.10 and Fig.11 Further, the rotating component 4 includes a coaxially arranged top plate 41, an axis 42, a fixed seat 43, a deep groove bearing 44, a bottom plate 45 and a bearing core 46; the top plate 41 and the axis 42 are integrally formed and the cross-sections of the top plate 41 and the axis 42 are "T"-shaped, the deep groove bearing 44 is sleeved on the outer peripheral wall of the axis 42, the fixed seat 43 is sleeved on the outer peripheral wall of the deep groove bearing 44, and the driven bevel gear 32 is surrounded by the outer peripheral wall of the fixed seat 43; the driven bevel gear 32, the fixed seat 43, and the deep groove bearing 44 are respectively arranged on the upper surface of the bottom plate 45; the bearing core 46 is fixedly arranged at the bottom of the axis 42, and the bottom plate 45 is arranged on the periphery of the bearing core 46 and is separated from the bearing core 46. Through the above arrangement, the top plate 41, the shaft 42 and the bearing core 46 do not rotate, so the welding gun can be set in the shaft 42; driven by the rotating driven bevel gear 32, the chassis 45 connected to the driven bevel gear 32, the fixed seat 43 arranged on the chassis 45 and the outer part of the deep groove bearing 44 are rotated, so that the wire feeding assembly 6 arranged on the chassis 45 moves in a circular motion. The above arrangement has a compact and simple structure, a high degree of fit between components, good operating stability and precise positioning.

[0040] See also Figure 7 and Fig.11Furthermore, a protective cover 47 is disposed around the outer peripheral wall of the top plate 41, and the protective cover 47 is disposed separately from the bottom plate 45, and the shaft 42, the fixing seat 43, the deep groove bearing 44 and the bearing core 46 are disposed in the protective cover 47. In the above arrangement, the protective cover 47 and the top plate 41 are prevented from rotating, and the rotating parts are disposed in the protective cover 47, which can effectively prevent other objects from falling into the protective cover 47, thereby affecting the operation of the transmission assembly 3, and can also protect the hands of the operator.

[0041] See also Figure 1 , Figure 7 Further, the mounting assembly 1 includes a mounting seat 11, an adjustment seat 12 and a motor seat 13; the driving assembly 2 is arranged on the motor seat 13, the upper surface of the motor seat 13 is provided with the adjustment seat 12, and the upper surface of the adjustment seat 12 is provided with the mounting seat 11; the mounting seat 11 is provided with a second waist-shaped hole 111 along its length direction, and a fourth locking member 112 is provided in the second waist-shaped hole 111, and the fourth locking member 112 is threadedly connected with the adjustment seat 12; the left and right side walls of the mounting seat 11 are respectively provided with fifth locking members 113, and the fifth locking members 113 on both sides are respectively abutted with the corresponding side walls of the adjustment seat 12. The motor seat 13 is provided to provide a mounting surface for the installation of the drive motor 21, and plays a role in fixing and supporting the drive motor 21; the adjustment seat 12 is provided to fine-tune the position of the motor seat 13 relative to the mounting seat 11 and the position of the adjustment seat 12 relative to the mounting seat 11; the mounting seat 11 is provided to allow the welding wire feeding structure to be arranged on the welding machine.

[0042] In actual use, the position of the rotating assembly 4 needs to be fine-tuned according to the angle or distance between the wire feeding assembly 6 and the welding gun, so as to ensure that the wire feeding position of the wire feeding assembly 6 is concentric with the laser point. The specific adjustment is as follows: loosen the fourth locking member 112 and the corresponding threaded hole 521 on the adjustment seat 12, loosen the fifth locking member 113 and the corresponding side wall of the adjustment seat 12, move the adjustment seat 12 in the left and right directions, and move the entire body to the left or right by a certain distance, and then respectively lock the fifth locking member 113 and the fourth locking member 112 to fix the adjustment seat 12.

[0043] In one embodiment, the motor seat 13, the adjustment seat 12 and the mounting seat 11 are first installed and then the whole is installed on the welding machine. In another embodiment, the mounting seat 11 is first connected to the welding machine, and then the adjustment seat 12 is connected to the mounting seat 11, the motor seat 13 is connected to the adjustment seat 12, and then the driving assembly 2, the rotating assembly 4, the adjustment assembly 5, the wire feeding assembly 6, etc. are respectively installed to the corresponding positions.

[0044] See also Figure 7Furthermore, the adjustment seat 12 is provided with a third waist-shaped hole 121 which is perpendicular to the extension direction of the second waist-shaped hole 111, and the third waist-shaped hole 121 is provided with a sixth locking piece 122, and the sixth locking piece 122 is threadedly connected to the motor seat 13; a seventh locking piece 123 is provided on the rear side wall of the adjustment seat 12, and the seventh locking piece 123 abuts against the rear side wall of the motor seat 13; the motor seat 13 is provided with a fourth waist-shaped hole 131 which has the same extension direction as the third waist-shaped hole 121, and an eighth locking piece 132 is provided in the fourth waist-shaped hole 131, and the eighth locking piece 132 is threadedly connected to the upper surface of the rotating component 4. The adjustment method of the sixth locking member 122, the seventh locking member 123, and the eighth locking member 132 is basically the same as the adjustment method of the fourth locking member 112 and the fifth locking member 113, except that the sixth locking member 122, the seventh locking member 123, and the eighth locking member 132 adjust the motor seat 13 in the front-to-back direction, and the fourth locking member 112 and the fifth locking member 113 adjust the adjustment seat 12 in the left-to-right direction, so they are not repeated here. Through the above arrangement, the movement of the motor seat 13 in the front-to-back direction is achieved, so as to adjust the meshing degree of the active bevel gear 31 and the driven bevel gear 32, improve the transmission efficiency of the transmission assembly 3, and reduce the transmission friction.

[0045] See also Figure 1 Further, the upper surface of the adjustment seat 12 is provided with a first limiting groove 124 in the same extension direction as the second waist-shaped hole 111, the width of the first limiting groove 124 is adapted to the width of the bottom of the mounting seat 11, and the mounting seat 11 is arranged in the first limiting groove 124. The first limiting groove 124 provides a mounting surface for the mounting seat 11, and is used to limit the movement of the mounting seat 11 in the front-rear direction, so that the mounting seat 11 can only move in the left-right direction.

[0046] See also Figure 1 Further, the upper surface of the motor seat 13 is provided with a second limiting groove 133 extending in the same direction as the third waist-shaped hole 121 and / or the fourth waist-shaped hole 131, and the lower surface of the adjustment seat 12 is provided with a limiting block (obstructed and invisible in the figure) matching the shape of the second limiting groove 133, and the limiting block is arranged in the second limiting groove 133. By providing the second limiting groove 133, the limiting block is clamped in the second limiting groove 133, which is used for positioning the motor seat 13, and the movement of the motor seat 13 in the left and right directions is limited, so that the motor seat 13 can only move in the front and back directions.

[0047] See also Figure 2 , Figure 3 and Figure 7Furthermore, a sealing cover 7 is provided outside the motor base 13 and the driving assembly 2; the sealing cover 7 is used to protect the motor base 13 and the driving assembly 2 to prevent objects from falling into the inside.

[0048] See also Figure 7 Furthermore, a sealing plate 8 is provided on the motor base 13, and the left and right side walls of the sealing plate 8 are respectively connected to the inner side walls of the motor base 13, and the lower side wall of the sealing plate 8 is connected to the upper surface of the top plate 41. Similarly, the sealing plate 8 is also provided to prevent objects from entering the interior of the rotating assembly 4 and affecting the operation of the power transmission assembly.

[0049] See also Figure 1 Furthermore, a plurality of heat dissipation strips 71 are provided on the sealing cover 7. The heat dissipation strips 71 are provided to dissipate the heat generated when the driving assembly 2 and the transmission assembly 3 are running, thereby extending the service life of the driving assembly 2 and the transmission assembly 3.

[0050] See also Figure 4 and Fig.12 Further, the wire feeding assembly 6 includes a conductive nozzle 61, a copper tube 62, a sleeve 63 and a core member 64; the conductive nozzle 61, the copper tube 62 and the core member 64 are connected to each other; the conductive nozzle 61 is arranged toward the bottom of the welding gun, the inner walls at both ends of the sleeve 63 are respectively provided with internal threads, the ends of the conductive nozzle 61 and the core member 64 are respectively provided with external threads adapted to the internal threads, the conductive nozzle 61 and the core member 64 are respectively threadedly connected to both ends of the sleeve 63, and the copper tube 62 is arranged in the sleeve 63. In actual use, the welding wire enters the copper tube 62 from the core member 64, and then passes through the copper tube 62 and is led out from the conductive nozzle 61. Through the above arrangement, the conductive nozzle 61, the copper tube 62, the sleeve 63 and the core member 64 can all be disassembled. When the conductive nozzle 61 is melted and splashes to clog the welding wire on the conductive nozzle 61 or when the aperture of the conductive nozzle 61 becomes larger, in order to avoid reducing the quality of welding, the conductive nozzle 61 needs to be replaced. The above arrangement facilitates the replacement of new parts.

[0051] See also Fig.12 Furthermore, the aperture of the conductive tip 61 is smaller than the apertures of the copper tube 62 and the core member 64. That is, the aperture of the conductive tip 61 that can accommodate the welding wire is smaller than the apertures of the copper tube 62 and the core member 64. The above arrangement enables the welding wire to easily pass through the copper tube 62 and the core member 64, and then be limited in the conductive tip 61, preventing the aperture of the conductive tip 61 from being too large, causing the welding wire to shake, thereby affecting the quality of welding.

[0052] Furthermore, in the present embodiment, the locking members mentioned above are all configured as hexagon socket screws, which cooperate with a hexagon socket wrench when used to achieve loosening or locking of the locking members.

[0053] In summary, the present invention is provided with a mounting assembly 1 for connecting with a welding machine, a driving assembly 2 and a transmission assembly 3 for rotating the rotating assembly 4, and an adjusting assembly 5 for adjusting the angle of the wire feeding assembly 6 toward the welding gun and the distance to the welding gun, so as to achieve large-angle adjustment of the wire feeding assembly 6. By providing more than one wire feeding assembly 6, different wire feeding assemblies 6 can simultaneously deliver welding wire to the position to be welded, which is conducive to making the heating of the welding wire more uniform, forming a deeper molten pool, and improving the quality and efficiency of laser welding. By providing a plurality of mounting holes 451 for connecting with a plurality of adjusting assemblies 5 and wire feeding assemblies 6. By providing a mediation assembly, the rotating block 54 can rotate around the second connecting bar 53, so as to achieve large-angle adjustment of the wire feeding assembly 6. By providing a first waist-shaped hole 531, a threaded hole 521 and a third locking member 532, the total length of the first connecting bar 52 and the second connecting bar 53 can be adjusted. By providing a slide groove 522 and a slider 533, the second connecting bar 53 is positioned and guided. By setting the driving motor 21, the sleeve 22 and the active bevel gear 31 and the driven bevel gear 32, compared with the existing conveyor belt transmission, the transmission has good transmission stability, high operation accuracy and high transmission efficiency, which is conducive to making the wire feeding assembly 6 accurately reach the preset position, thereby improving the welding accuracy; and the compactness is high, which is conducive to reducing the volume of the welding wire feeding device. By setting the rotating assembly 4, a part of the components of the rotating assembly 4 does not rotate, and a part of the components rotate, so that the structure of the rotating assembly 4 is compact and streamlined, the degree of fit between the components is high, and the operation stability is good and the positioning is accurate. By setting the protective cover 47, other objects are prevented from falling into the protective cover 47, thereby affecting the operation of the transmission assembly 3. By setting the motor seat 13, it is used to provide a mounting surface for the installation of the driving motor 21, by setting the adjustment seat 12, it is used to fine-tune the position of the adjustment seat 12 and the motor seat 13 relative to the mounting seat 11, and by setting the mounting seat 11, it is used to set the welding wire feeding structure on the welding machine. By setting the fourth locking member 112 and the fifth locking member 113, the movement of the adjustment seat 12 in the left and right directions is realized. The sixth locking member 122, the seventh locking member 123, and the eighth locking member 132 are provided to realize the front-to-back movement of the motor base 13. The first limiting groove 124 is provided to limit the front-to-back movement of the mounting base 11. The second limiting groove 133 is provided to limit the left-to-right movement of the motor base 13. The sealing cover 7 and the sealing plate 8 are provided to prevent objects from falling into the interior and affecting the operation of the transmission assembly 3.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A welding wire feeding device, characterized in that: The invention comprises a mounting assembly, a driving assembly, a transmission assembly, a rotating assembly, an adjusting assembly and a wire feeding assembly; the mounting assembly is used to be connected to the welding machine, the driving assembly is arranged on the mounting assembly, the driving assembly is in transmission connection with the transmission assembly, the transmission assembly is used to make the rotating assembly and one or more wire feeding assemblies arranged on the rotating assembly move circumferentially around the welding gun, the adjusting assembly is arranged between the rotating assembly and the wire feeding assembly, the adjusting assembly is used to adjust the distance and angle between the wire feeding assembly and the welding gun; the lower surface of the rotating assembly is provided with mounting holes arranged in a circular array, the number of the adjusting assemblies is consistent with the number of the wire feeding assemblies, the adjusting assembly comprises a connecting block connected to the corresponding mounting hole, a connecting block connected to the welding gun through a first A first connecting strip rotatably connected to the side wall of the connecting block by a locking piece, a second connecting strip detachably connected to the first connecting strip, and a rotating block rotatably connected to the end of the second connecting strip through a second locking piece, the rotating block is configured as a clamp, a clamp is provided with a clamping groove, and the wire feeding assembly is arranged in the clamping groove; the wire feeding assembly comprises a conductive nozzle, a copper tube, a sleeve and a core piece; the conductive nozzle, the copper tube and the core piece are connected to each other; the conductive nozzle is arranged toward the bottom of the welding gun, the inner walls at both ends of the sleeve are respectively provided with internal threads, the ends of the conductive nozzle and the core piece are respectively provided with external threads adapted to the internal threads, the conductive nozzle and the core piece are respectively threadedly connected to the two ends of the sleeve, and the copper tube is arranged in the sleeve.

2. The welding wire feeding device according to claim 1, characterized in that: The first connecting strip is provided with more than two threaded holes extending along its length direction, and the second connecting strip is provided with more than two first waist-shaped holes, each of the first waist-shaped holes is provided with a third locking piece, and an end of each of the third locking pieces passes through the corresponding first waist-shaped hole and is threadedly connected with the corresponding threaded hole.

3. The welding wire feeding device according to claim 2, characterized in that: A sliding groove is arranged on the side wall of the first connecting strip facing the second connecting strip, and a sliding block matched with the sliding groove is arranged on the side wall of the second connecting strip facing the first connecting strip, and the sliding block is slidably arranged in the sliding groove.

4. The welding wire feeding device according to claim 1, characterized in that: The driving assembly includes a driving motor and a shaft sleeve, wherein the shaft sleeve is sleeved on the output end of the driving motor; the transmission assembly includes an active bevel gear and a driven bevel gear meshing with the active bevel gear, wherein the shaft sleeve is connected to the middle part of the active bevel gear; and the driven bevel gear is arranged in the rotating assembly.

5. The welding wire feeding device according to claim 4, characterized in that: The rotating assembly includes a coaxially arranged top plate, an axis, a fixed seat, a deep groove bearing, a bottom plate and a bearing core; the top plate and the axis are integrally formed and the cross-sections of the top plate and the axis are "T"-shaped, the deep groove bearing is sleeved on the outer peripheral wall of the axis, the fixed seat is sleeved on the outer peripheral wall of the deep groove bearing, and the driven bevel gear is surrounded by the outer peripheral wall of the fixed seat; the driven bevel gear, the fixed seat and the deep groove bearing are respectively arranged on the upper surface of the bottom plate; the bearing core is fixedly arranged at the bottom of the axis, and the bottom plate is arranged on the periphery of the bearing core and is separated from the bearing core.

6. The welding wire feeding device according to claim 1, characterized in that: The mounting assembly includes a mounting seat, an adjustment seat and a motor seat; the driving assembly is arranged on the motor seat, the upper surface of the motor seat is provided with the adjustment seat, and the upper surface of the adjustment seat is provided with the mounting seat; the mounting seat is provided with a second waist-shaped hole along its length direction, and a fourth locking piece is provided in the second waist-shaped hole, and the fourth locking piece is threadedly connected with the adjustment seat; fifth locking pieces are respectively provided on the left and right side walls of the mounting seat, and the fifth locking pieces on both sides are respectively abutted against the corresponding side walls of the adjustment seat.

7. The welding wire feeding device according to claim 6, characterized in that: The adjustment seat is provided with a third waist-shaped hole perpendicular to the extension direction of the second waist-shaped hole, and the third waist-shaped hole is provided with a sixth locking piece, and the sixth locking piece is threadedly connected to the motor seat; the rear side wall of the adjustment seat is provided with a seventh locking piece, and the seventh locking piece abuts against the rear side wall of the motor seat; the motor seat is provided with a fourth waist-shaped hole with the same extension direction as the third waist-shaped hole, and the fourth waist-shaped hole is provided with an eighth locking piece, and the eighth locking piece is threadedly connected to the upper surface of the rotating assembly.

8. The welding wire feeding device according to claim 7, characterized in that: The upper surface of the adjustment seat is provided with a first limiting groove in the same extension direction as the second waist-shaped hole, the width of the first limiting groove is adapted to the width of the bottom of the mounting seat, and the mounting seat is arranged in the first limiting groove; the upper surface of the motor seat is provided with a second limiting groove in the same extension direction as the third waist-shaped hole and / or the fourth waist-shaped hole, and the lower surface of the adjustment seat is provided with a limiting block adapted to the shape of the second limiting groove, and the limiting block is arranged in the second limiting groove.

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