Automatic wire feeding device for argon arc welding gun

Abstract

The present invention discloses an automatic wire feeding device for an argon arc welding gun, and relates to the technical field of welding equipment. The device includes a wire feeding seat, a wire straightening assembly, a traction assembly, and a protective kit fixed to the surface of the wire feeding seat; the wire straightening assembly includes a fixed seat, a plurality of spiral shaft rollers, and an adjuster, and the spiral shaft rollers are evenly distributed and driven to rotate by a reduction motor, and are used to efficiently straighten the welding wire; the adjuster adjusts the spacing between the spiral shaft rollers through a sliding mechanism to meet the straightening requirements of welding wires of different specifications; the traction assembly includes a wire feeding box, a motor, a wire guide gear ring, an elastic wheel, and a reduction gear set, and the welding wire is stably pulled and accurately conveyed through the friction between the wire guide gear ring and the welding wire, combined with the elastic wheel. The present invention can efficiently straighten the welding wire, ensure smooth wire conveying, and is suitable for welding wires of various specifications, significantly improving welding quality and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to an automatic wire feeding device for an argon arc welding gun. Background Art

[0002] As a high-precision and high-efficiency welding process, argon arc welding is widely used in the manufacture and repair of metal structures. The wire feeding device of the traditional argon arc welding gun generally consists of a wire guide tube, a single transmission wheel and a simple straightening mechanism. The welding wire is fed to the welding gun mouth through the guide tube. However, the structure of this type of traditional wire feeding device is relatively simple. The straightening and feeding of the welding wire mainly rely on the rolling friction of a single transmission wheel. The feeding path of the welding wire is fixed, and the straightening accuracy is limited, which is difficult to meet the requirements of high-quality welding.

[0003] As for the welding wire straightening function, the traditional wire feeding device only uses a straight guide tube or a single straightening component to limit the deformation of the welding wire, which is difficult to effectively straighten the deviation or distortion of the welding wire during the feeding process, which easily leads to arc welding instability or weld quality problems during welding. In addition, the welding wire feeding components are mostly fixed structures and cannot be flexibly adjusted according to different specifications of welding wire, resulting in poor adaptability of the device and limiting its practical application range.

[0004] In the transmission part of wire feeding, traditional technology usually adopts direct transmission mode, lacks reasonable deceleration device, resulting in insufficient traction, especially when feeding longer or thicker wires, which is prone to unstable wire feeding or transmission slippage. This not only reduces welding efficiency, but also may cause asynchronous wire feeding, thereby affecting the overall quality and efficiency of the welding process. In view of this, the existing problems are studied and improved, and an automatic wire feeding device for argon arc welding guns is provided to solve the current problems, aiming to achieve the purpose of solving problems and improving practical value through this technology. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related art, namely, the problems of poor wire straightening effect, insufficient adaptability, low transmission efficiency and poor wire feeding stability in a traditional argon arc welding gun wire feeding device.

[0006] To this end, the technical solution adopted by the present invention is: an automatic wire feeding device for a argon arc welding gun, comprising a wire feeding seat, a wire straightening assembly and a pulling assembly, and a protective kit fixed on the surface of the wire feeding seat; The protective kit is sleeved on the outside of the wire correction assembly; The wire straightening assembly includes a fixed seat, a plurality of spiral shaft rollers and an adjuster. A reduction motor for driving the spiral shaft roller to rotate is provided on the surface of the fixed seat. The output end of the reduction motor is connected to the end of the spiral shaft roller through a universal coupling. The adjuster is movably connected to the other end of the spiral shaft roller and is used to adjust the spacing between the spiral shaft rollers. The number of the spiral shaft rollers is several and evenly distributed in the circumferential direction. The traction assembly includes a wire feeding box, a motor, a wire feeding gear ring and an elastic resistance wheel, and a reduction gear group for transmitting the motor output end and the surface of the wire feeding gear ring. The motor, the wire feeding gear ring, the elastic resistance wheel and the reduction gear group are located on the inner side of the wire feeding box, and a wire guide cover is detachably installed on the surface of the wire feeding box. The wire feeding gear ring is rotatably sleeved on the outer periphery of the motor, and the elastic resistance wheel faces the surface of the wire feeding gear ring for conveying the welding wire.

[0007] In a preferred example, the present invention can be further configured as follows: The regulator includes a ring guide seat, a diameter guide cover and a plurality of ball head slide seats slidably mounted on the surface of the diameter guide cover. A rotating ring and an adjusting knob are rotatably mounted on the inner side of the diameter guide cover. A plane spiral ridge is provided on the other side of the rotating ring. The bottom surface of the ball head slide seat is provided with a rack meshing with the ridges on the surface of the rotating ring.

[0008] The inner side of the wire guide tooth ring is provided with a bearing ring which is rotatably sleeved on the outer periphery of the motor, and the outer periphery is provided with transmission teeth for transmission engagement with the reduction gear set, and the outer periphery of the wire guide tooth ring is also provided with anti-skid edges for improving the friction effect with the welding wire.

[0009] The elastic bearing wheel and the anti-skid edge on the wire guide tooth ring are located in the same plane, and a flexible rubber sleeve is provided on the surface of the elastic bearing wheel for elastically supporting the surface of the welding wire.

[0010] The reduction gear set comprises a plurality of transmission gears meshing with each other and is used for reduction transmission between the motor and the wire drawing gear ring.

[0011] The spiral shaft roller is in the shape of a spiral roller, the spiral pitches of each spiral shaft roller are the same, and the spiral convexities of each spiral shaft roller are arranged in a staggered manner. The surface of the spiral shaft roller is hardened to improve wear resistance and service life.

[0012] Through the above technical scheme, the present invention provides an automatic wire feeding device for an argon arc welding gun which is efficient, stable, highly adaptable and has high welding wire feeding accuracy, which can effectively solve related problems in the prior art and significantly improve welding quality and operating efficiency.

[0013] The beneficial effects achieved by the present invention are: 1. In the present invention, a spiral shaft roller is arranged in the wire straightening assembly, and a structure of multiple spiral shaft rollers evenly distributed is adopted, so that the welding wire can be efficiently straightened during the conveying process, and the stable output of the welding wire is ensured, thereby improving the welding quality.

[0014] 2. In the present invention, by using the radial guide cover and the ball head slide seat inside the regulator, the feeding gap of the welding wire can be flexibly adjusted according to the specifications of the welding wire, the adaptability is strong, and the practicality of the device is improved.

[0015] 3. In the present invention, by setting the reduction gear group, the transmission between the traction assembly and the wire straightening assembly can be reasonably decelerated to increase the traction torque, ensure that the speed of the welding wire is consistent with the welding rhythm, and improve the welding efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a wire straightening assembly according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of a wire feeding box according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a traction assembly according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the exploded structure of a traction assembly according to an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a wire guide tooth ring according to an embodiment of the present invention; Figure 7 A schematic diagram of a spiral shaft roller driving structure according to an embodiment of the present invention; Figure 8 The figure is a schematic diagram of the decomposed structure of a regulator according to an embodiment of the present invention.

[0017] Reference numerals: 100, wire feeder; 110, protection kit; 200, wire straightening assembly; 210, fixing seat; 220, spiral shaft roller; 230, regulator; 211, reduction motor; 212, universal coupling; 221, ball head connecting rod; 231, ring guide seat; 232, radial guide cover; 233, ball head sliding seat; 234, rotating ring; 235, adjusting knob; 300, traction assembly; 310, wire feeding box; 320, motor; 330, wire guide gear ring; 340, elastic stop wheel; 350, reduction gear set; 311, wire guide cover; 331, bearing ring; 332, transmission gear; 333, anti-skid edge. DETAILED DESCRIPTION

[0018] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0019] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0020] An automatic wire feeding device for a argon arc welding gun provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0021] Combination Figure 1-Figure 8 As shown, the present invention provides an automatic wire feeding device for an argon arc welding gun, comprising a wire feeding seat 100, a wire straightening assembly 200, a traction assembly 300 and a protective kit 110 fixed to the surface of the wire feeding seat 100, wherein the protective kit 110 is used to protect the wire straightening assembly 200 from external interference and is sleeved on the outside of the wire straightening assembly 200.

[0022] Specifically, the wire straightening assembly 200 includes a fixed seat 210, a plurality of spiral shaft rollers 220 and an adjuster 230. A reduction motor 211 is installed on the fixed seat 210, and the output end of the reduction motor 211 is connected to the end of the spiral shaft roller 220 through a universal coupling 212, so as to drive the spiral shaft roller 220 to rotate. The adjuster 230 is movably connected to the other end of the spiral shaft roller 220, and the spacing between the spiral shaft rollers 220 is adjusted by the adjuster 230 to meet the conveying requirements of welding wires of different specifications. There are a plurality of spiral shaft rollers 220, which are evenly distributed in the circumferential direction of the fixed seat 210.

[0023] like Figure 2 , Figure 7 and Figure 8 As shown, the regulator 230 includes a ring guide seat 231, a diameter guide cover 232, and a plurality of ball head slide seats 233 slidably mounted on the surface of the diameter guide cover 232. A rotating ring 234 and an adjusting button 235 are rotatably mounted on the inner side of the diameter guide cover 232. The other side of the rotating ring 234 is provided with a plane spiral ridge, and the bottom surface of the ball head slide seat 233 is provided with a rack meshing with the ridge on the surface of the rotating ring 234. Driven by the adjusting button 235, the rotating ring 234 rotates, and the ball head slide seat 233 slides radially on the surface of the diameter guide cover 232 through meshing transmission, thereby adjusting the spacing between the spiral shaft rollers 220. A ball head connecting rod 221 is provided at the end of the spiral shaft roller 220, which is adapted to be connected with the ball sleeve groove provided on the surface of the ball head slide seat 233 to ensure the smooth movement of the spiral shaft roller 220 during the adjustment process.

[0024] like Figure 3 , Figure 4 and Figure 5As shown, the traction assembly 300 includes a wire box 310, a motor 320, a wire guide ring 330, an elastic wheel 340 and a reduction gear set 350. The motor 320, the wire guide ring 330, the elastic wheel 340 and the reduction gear set 350 are located on the inner side of the wire box 310, and a wire guide cover 311 is detachably installed on the surface of the wire box 310. The wire guide cover 311 is used to guide the welding wire into the traction assembly 300 and to prevent the welding wire from falling off during transportation.

[0025] like Figure 6 As shown, the inner side of the wire guide toothed ring 330 is rotatably sleeved on the outer periphery of the motor 320 through a bearing ring 331, and the outer periphery is provided with a transmission tooth 332 for transmission engagement with the reduction gear set 350. In addition, the outer periphery of the wire guide toothed ring 330 is provided with an anti-skid ridge 333, which effectively improves the stability of the welding wire during the transportation process by increasing the friction force. The elastic wheel 340 is located at a position opposite to the anti-skid ridge 333 of the wire guide toothed ring 330 and is located in the same plane with it. The surface of the elastic wheel 340 is provided with a flexible rubber sleeve for elastically supporting the welding wire to prevent the welding wire from being offset during the transportation process and affecting the welding effect.

[0026] like Figure 7 As shown, the reduction gear set 350 includes a plurality of mutually meshing transmission gears, and the reduction gear set 350 is used for the reduction transmission between the motor 320 and the wire guide gear ring 330. Through a reasonable reduction ratio design, the reduction gear set 350 can provide sufficient traction to ensure a smooth and synchronous welding wire feeding process.

[0027] In addition, the spiral roller 220 is in the shape of a spiral roller, and the spiral pitch is the same. The spiral convexities of each spiral roller 220 are arranged in a staggered manner to enhance the straightening effect of the welding wire. The surface of the spiral roller 220 is hardened, which greatly improves its wear resistance and service life, and is suitable for long-term and high-intensity welding operations.

[0028] Through the above-mentioned structural design, the automatic wire feeding device for an argon arc welding gun provided by the present invention can efficiently straighten the welding wire, flexibly adapt to welding wires of different specifications, and ensure that the welding wire is smoothly and accurately fed during the welding process, thereby significantly improving the welding quality and work efficiency.

[0029] The working principle and use process of the present invention: The automatic wire feeding device of the argon arc welding gun of the present invention realizes efficient straightening, stable feeding and precise pulling of the welding wire through the cooperation of the wire straightening assembly, the pulling assembly and the wire feeding seat. Its main working principle is as follows: Wire straightening: After the welding wire enters the wire straightening assembly 200, the reduction motor 211 on the fixed seat 210 drives multiple spiral shaft rollers 220 to rotate synchronously, and the welding wire is straightened through the multi-point contact and staggered spiral convex action of the spiral shaft rollers 220. The spiral shaft rollers 220 adopt a uniformly distributed multi-roller structure, which can effectively eliminate the bending or twisting of the welding wire during the conveying process and ensure the straightness of the welding wire.

[0030] Wire straightening spacing adjustment: To adapt to welding wires of different specifications, the regulator 230 drives the rotating ring 234 to rotate through the adjusting knob 235, and the spiral ridges on the rotating ring 234 mesh with the racks of the ball head slide 233, driving the ball head slide 233 to slide radially, changing the spacing between the spiral shaft rollers 220. The tilting spacing of one end of each spiral shaft roller 220 is reduced, and the spiral shaft roller 220 and the ball head slide 233 are flexibly connected through the ball head connecting rod 221 to achieve accurate spacing adjustment and flexible rotation.

[0031] Wire pulling and conveying: After passing through the wire straightening assembly, the wire enters the pulling assembly 300. The motor 320 in the pulling assembly transmits power to the wire guide ring 330 through the reduction gear set 350. The anti-skid ridges 333 on the outer periphery of the wire guide ring 330 contact the wire and pull the wire forward through friction. At the same time, the elastic wheel 340 applies appropriate elastic support to the wire through the flexible rubber sleeve, and cooperates with the wire guide ring 330 to ensure smooth wire conveying and avoid slipping.

[0032] Power transmission optimization: The reduction gear set 350 is designed as a multi-stage meshing structure, which converts the high-speed rotation power of the motor 320 into a low-speed high-torque output, providing sufficient traction to adapt to the stable conveying effect of the welding wire.

[0033] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic wire feeding device for a argon arc welding gun, characterized in that: include: A wire feed seat (100), a wire straightening assembly (200), a traction assembly (300), and a protective kit (110) fixed to the surface of the wire feed seat (100), wherein the protective kit (110) is sleeved on the outside of the wire straightening assembly (200); The wire straightening assembly (200) comprises a fixed seat (210), a spiral shaft roller (220) and an adjuster (230); a reduction motor (211) for driving the spiral shaft roller (220) to rotate is provided on the surface of the fixed seat (210); an output end of the reduction motor (211) is connected to a universal coupling (212) connected to the end of the spiral shaft roller (220); the adjuster (230) is movably connected to the other end of the spiral shaft roller (220) and is used for adjusting the spacing between the spiral shaft rollers (220); the number of the spiral shaft rollers (220) is several and is evenly distributed in the circumferential direction.

2. The automatic wire feeding device for a argon arc welding gun according to claim 1, characterized in that: The regulator (230) comprises a ring guide seat (231), a radial guide cover (232), and a plurality of ball head slide seats (233) slidably mounted on the surface of the radial guide cover (232); a rotating ring (234) and an adjusting button (235) are rotatably mounted on the inner side of the radial guide cover (232); a plane spiral ridged tooth is provided on the other side of the rotating ring (234); and a rack meshing with the ridged tooth on the surface of the rotating ring (234) is provided on the bottom surface of the ball head slide seat (233).

3. The automatic wire feeding device for a argon arc welding gun according to claim 2, characterized in that: The plurality of ball head slide seats (233) radially slide on the surface of the radial guide cover (232) through the rotational driving action of the rotating ring (234); a ball head connecting rod (221) is provided at the end of the spiral shaft roller (220); and a ball sleeve groove matching the ball head connecting rod (221) is provided on the surface of the ball head slide seat (233).

4. The automatic wire feeding device for a argon arc welding gun according to claim 2, characterized in that: The regulating button (235) is arranged radially, and the surface of the regulating button (235) and the surface of the rotating ring (234) are provided with mutually meshing bevel teeth.

5. The automatic wire feeding device for argon arc welding gun according to claim 2, characterized in that: The traction assembly (300) comprises a wire feeding box (310), a motor (320), a wire guide toothed ring (330), an elastic wheel (340), and a reduction gear set (350) for transmission between the output end of the motor (320) and the surface of the wire guide toothed ring (330); the motor (320), the wire guide toothed ring (330), the elastic wheel (340), and the reduction gear set (350) are located on the inner side of the wire feeding box (310), and a wire guide cover (311) is detachably mounted on the surface of the wire feeding box (310); the wire guide toothed ring (330) is rotatably sleeved on the outer periphery of the motor (320), and the elastic wheel (340) faces the surface of the wire guide toothed ring (330) for conveying the welding wire.

6. The automatic wire feeding device for argon arc welding gun according to claim 5, characterized in that: A bearing ring (331) rotatably sleeved on the outer circumference of the motor (320) is provided on the inner side of the wire guide toothed ring (330), transmission teeth (332) for transmission engagement with a reduction gear set (350) are provided on the outer circumference of the wire guide toothed ring (330), and anti-skid edges (333) for improving friction with the welding wire are provided on the outer circumference of the wire guide toothed ring (330).

7. The automatic wire feeding device for a argon arc welding gun according to claim 6, characterized in that: The elastic wheel (340) and the anti-slip edge (333) are located in the same plane, and a flexible rubber sleeve is provided on the surface of the elastic wheel (340) for elastically supporting the surface of the welding wire.

8. The automatic wire feeding device for argon arc welding gun according to claim 1, characterized in that: The reduction gear set (350) comprises a plurality of mutually meshing transmission gears, and the reduction gear set (350) is used for reduction transmission between the motor (320) and the wire drawing gear ring (330).

9. The automatic wire feeding device for argon arc welding gun according to claim 1, characterized in that: The spiral shaft roller (220) is in the shape of a spiral roller, the spiral pitches of the spiral shaft rollers (220) are the same, and the spiral convexities of the spiral shaft rollers (220) are arranged in a staggered manner, and the surface of the spiral shaft rollers (220) is hardened.

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