Welding device for stainless steel bar assembly

Abstract

The invention discloses a stainless steel bar pairing welding device, and relates to the technical field of welding equipment, the stainless steel bar pairing welding device comprises a U-shaped structure bottom plate, the outer side of the U-shaped structure bottom plate is fixedly connected with two groups of transverse bearing bottom plates, the two groups of transverse bearing bottom plates are symmetrically distributed on the outer side of the U-shaped structure bottom plate, and the tops of the transverse bearing bottom plates are provided with fixing mechanisms; a traction mechanism is arranged on one side of the fixing mechanism, a driving mechanism is arranged on the top of the U-shaped structure bottom plate, a welding mechanism is arranged on the outer side of the driving mechanism, two switch triggering mechanisms are arranged on the top of the U-shaped structure bottom plate, and the two switch triggering mechanisms are symmetrically distributed on the top of the U-shaped structure bottom plate. According to the welding device for stainless steel bar pairing, magnetic force in the electromagnetic base can be triggered through movement and weight of a workpiece, a circuit of the warning lamp is connected through movement of the workpiece, and then the welding effect of the device is improved by observing whether the warning lamp emits light or not.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a welding device for stainless steel bar pairs. Background Art

[0002] Stainless steel bars are made of stainless steel ingots, which are hot rolled or forged. The production of stainless steel bars has emerged with the development of stainless steel. As the application range of stainless steel bars is becoming more and more extensive, such as the foundation of high-rise buildings in cold areas, isolation nets beside highways, household products, etc., the hot rolling production of stainless steel bars has been greatly developed. 30% of stainless steel products in my country, while only 8%-10% are abroad. With the rapid development of cutting-edge technologies such as petroleum, chemical industry, energy, atomic energy, aerospace, and marine development, higher comprehensive performance requirements are put forward for stainless steel, which not only requires good corrosion resistance, but also requires high strength, high temperature and high pressure resistance, radiation protection, low temperature resistance and other properties, so that the types of stainless steel are further developed.

[0003] Stainless steel bar groups often need to be welded together to adapt to different lengths. However, the existing welding devices lack an alignment warning structure. During the welding process, affected by human factors and external collisions, the two groups of workpieces are prone to misalignment, which in turn affects the welding results.

[0004] Therefore, it is necessary to invent a welding device for stainless steel bar pairs to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a welding device for stainless steel bar pairs to solve the problem of lack of alignment warning structure mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for stainless steel bar pairs, comprising a U-shaped structural bottom plate, two groups of transverse load-bearing bottom plates are fixedly connected to the outer side of the U-shaped structural bottom plate, the two groups of transverse load-bearing bottom plates are symmetrically distributed on the outer side of the U-shaped structural bottom plate, a fixing mechanism is arranged on the top of the transverse load-bearing bottom plate, a traction mechanism is arranged on one side of the fixing mechanism, a driving mechanism is arranged on the top of the U-shaped structural bottom plate, a welding mechanism is arranged on the outer side of the driving mechanism, two groups of switch trigger mechanisms are arranged on the top of the U-shaped structural bottom plate, the two groups of switch trigger mechanisms are symmetrically distributed on the top of the U-shaped structural bottom plate, and one side of the switch trigger mechanism A warning mechanism is arranged on the side; the traction mechanism comprises a traction base plate arranged on the top of the transverse load-bearing base plate, the top of the traction base plate is fixedly connected with a telescopic adjustment seat, the top of the telescopic adjustment seat is fixedly connected with a supporting semi-arc plate, the outer side of the supporting semi-arc plate is fixedly connected with two groups of traction semi-arc plates, the two groups of traction semi-arc plates are symmetrically distributed on the outer side of the supporting semi-arc plate, the bottom of the traction semi-arc plate is movably connected with a traction shaft, the outer side of the traction shaft is installed with a traction wheel, and one end of the traction shaft is installed with a traction motor; the driving mechanism comprises a driving tube arranged on the top of the U-shaped structure base plate, the outer side of the driving tube is fixedly connected with two groups of driving racks, the two The driving racks are symmetrically distributed on the outside of the driving tube, a driving motor is installed on the top of the U-shaped structure bottom plate, a driving shaft is arranged on one side of the driving motor, two groups of driving gears are installed on the outside of the driving shaft, and the two groups of driving gears are symmetrically distributed on the outside of the driving shaft; the switch trigger mechanism includes two groups of switch slides arranged on the outside of the driving tube, the two groups of switch slides are symmetrically distributed on the outside of the driving tube, a switch plate sleeve is movably connected to the top of the switch slide, a lifting plate is movably connected to the top of the lifting plate, a contact plate is installed on the top of the lifting plate, a guiding inclined end is arranged at one end of the contact plate, and a Two groups of elastic rods, the two groups of elastic rods are symmetrically distributed at the bottom of the lifting plate, an electric telescopic rod is installed on one side of the switch slide, a power input conductive plate is installed at the bottom of the lifting plate, the bottom of the power input conductive plate is movably connected with a movable conductive plate, two groups of conductive springs are installed on the top of the movable conductive plate, the two groups of conductive springs are linearly distributed on the top of the movable conductive plate, a power line tube is provided on one side of the power input conductive plate, a power input line is installed at one end of the power line tube, an electromagnetic input conductive plate is installed on the top of the bottom wall of the switch plate sleeve, an electromagnetic wire tube is provided on one side of the electromagnetic input conductive plate, and an electromagnetic input line is installed on one side of the electromagnetic wire tube;The warning mechanism comprises an assembly base plate arranged at the top of the U-shaped structure base plate, a warning light is installed on the top of the assembly base plate, a lamp body output line is arranged on one side of the warning light, and a lamp body input line is arranged on the other side of the warning light, an electromagnetic seat is installed on one side of the switch plate sleeve, an electromagnetic core is arranged inside the electromagnetic seat, an electromagnetic wire harness is wound around the outer side of the electromagnetic core, a power input end is arranged at one end of the electromagnetic wire harness, an electromagnet is arranged on one side of the electromagnetic core, a magnetic lifting rod is arranged on the outer side of the electromagnet, an electromagnetic strip is arranged on one side of the electromagnet, an insulating sleeve is installed on one side of the electromagnet, an insulating movable rod is movably connected to one side of the insulating sleeve, a reset spring is fixedly connected to one end of the insulating movable rod, an insulating connecting ring is installed on one end of the insulating connecting ring, an elastic metal sheet is installed on one side of the insulating metal sheet, a conductive contact block is arranged on one side of the elastic metal sheet, a lamp body wiring copper nozzle is arranged on the outer side of the elastic metal sheet, and a trigger input line is installed on one side of the lamp body wiring copper nozzle. ;

[0007] Preferably, the fixing mechanism includes a U-shaped fixing seat arranged on the top of the lateral load-bearing base plate, the top of the U-shaped fixing seat is movably connected with two groups of structural sliders, the two groups of structural sliders are symmetrically distributed on the top of the U-shaped fixing seat, one side of the structural slider is fixedly connected with a clamping arc plate, the inner side of the clamping arc plate is installed with a damping plate pad, and the outer side of the U-shaped fixing seat is installed with two groups of clamping hydraulic cylinders, the two groups of clamping hydraulic cylinders are symmetrically distributed on the outer side of the U-shaped fixing seat, and a hydraulic output rod is provided on one side of the clamping hydraulic cylinder.

[0008] Preferably, the fixing mechanism includes two groups of damping rods arranged on one side of the structural slider, the two groups of damping rods are symmetrically distributed on one side of the structural slider, a plurality of groups of fixing bolts are threadedly connected to one side of the clamping hydraulic cylinder, the plurality of groups of fixing bolts are rectangularly distributed on one side of the clamping hydraulic cylinder, a plurality of groups of T-shaped slide bars are fixedly connected to the bottom of the structural slider, the plurality of groups of T-shaped slide bars are linearly distributed at the bottom of the structural slider, a plurality of groups of T-shaped grooves are opened on the top of the U-shaped fixing seat, the plurality of groups of T-shaped grooves are linearly distributed on the top of the U-shaped fixing seat.

[0009] Preferably, the traction mechanism also includes a plurality of groups of interlocking plates arranged on the inner wall of the supporting semi-arc plate, the plurality of groups of interlocking plates are linearly distributed on the inner wall of the supporting semi-arc plate, the inner wall of the interlocking plate is embedded with a plurality of groups of movable balls, the plurality of groups of movable balls are annularly distributed on the inner wall of the interlocking plate, a plurality of groups of resistance bars are installed on the outer side of the traction wheel, the plurality of groups of resistance bars are annularly distributed on the outer side of the traction wheel, two groups of traction bearing telescopic rods are installed on the outer side of the traction shaft, the two groups of traction bearing telescopic rods are symmetrically distributed on the outer side of the traction shaft, and an L-shaped motor frame is installed on the outer side of the traction motor.

[0010] Preferably, the driving mechanism also includes a driving bearing rod arranged at one end of the driving shaft, two groups of limiting outer rings are fixedly connected to the outer side of the driving tube, and the two groups of limiting outer rings are symmetrically distributed on the outer side of the driving tube, two groups of support plate seats are fixedly connected to the top of the U-shaped structure bottom plate, and the two groups of support plate seats are symmetrically distributed on the top of the U-shaped structure bottom plate, a limiting rotation groove is opened on the top of the support plate seat, and a heat-resistant outer ring is fixedly connected to the outer side of the driving tube.

[0011] Preferably, the driving mechanism further comprises a telescopic cylinder arranged in the heat-resistant outer ring wall groove, a telescopic output rod is arranged on one side of the telescopic cylinder, and a grinding block is installed on one end of the telescopic output rod.

[0012] Preferably, the welding mechanism includes two groups of connecting plate seats arranged on the top of the heat-resistant outer ring, the two groups of connecting plate seats are symmetrically distributed on the top of the heat-resistant outer ring, one side of the connecting plate seat is movably connected with a positioning outer ring, the inner side of the positioning outer ring is movably connected with a clamping inner ring, the outer side of the clamping inner ring is fixedly connected with multiple groups of clamping springs, the multiple groups of clamping springs are distributed in a ring shape on the outer side of the clamping inner ring, a clamping cylinder is installed on one side of the connecting plate seat, and a clamping output rod is provided on one side of the clamping cylinder.

[0013] Preferably, the welding mechanism also includes two groups of guide slide bars arranged on one side of the connecting plate seat, the two groups of guide slide bars are symmetrically distributed on one side of the connecting plate seat, two groups of guide slide bars are fixedly connected to the outer side of the positioning outer ring, the two groups of guide slide bars are symmetrically distributed on the outer side of the positioning outer ring, a welding gun head is installed on the inner side of the positioning outer ring, and a gas supply butt pipe is installed on the top of the welding gun head.

[0014] Preferably, the switch trigger mechanism also includes a cross connecting plate arranged at one end of the electric telescopic rod, one end of the electric telescopic rod is fixedly connected to the switch plate sleeve through the cross connecting plate, two groups of limiting slide bars are fixedly connected to the outer side of the switch plate sleeve, the two groups of limiting slide bars are symmetrically distributed on the outer side of the switch plate sleeve, two groups of limiting slide grooves are opened on the outer side of the switch slide, the two groups of limiting slide grooves are symmetrically distributed on the outer side of the switch slide, one end of the power line tube is provided with a power wiring copper nozzle, the outer side of the power wiring copper nozzle is threadedly connected with a fastening bolt, and the outer side of the switch plate sleeve is opened with a lifting slide groove.

[0015] Preferably, the warning mechanism also includes a plurality of groups of assembly bolts arranged on the top of the warning light base plate, the plurality of groups of assembly bolts are distributed in a ring shape on the top of the warning light base plate, the outer side of the electromagnetic seat is threadedly connected with a plurality of groups of support bolts, the plurality of groups of support bolts are distributed in a ring shape on the outer side of the electromagnetic seat, and a wiring harness buckle is installed on the outer side of the insulating movable rod.

[0016] Technical effects and advantages of the present invention: 1. In the process of fixing and welding, the present invention drives the movable conductive plate at the bottom of the power input conductive plate to contact the electromagnetic input conductive plate at a specific position through the movement and weight of the workpiece, so that the electromagnetic wire harness in the electromagnetic seat is energized to generate magnetic force to adsorb the workpiece and move with the workpiece, and the circuit of the warning light is connected through the contact of the conductive contact block on the insulating movable rod on the side of the electromagnetic seat, so that the warning light is lit to remind the staff to align the workpiece, and further by observing whether the warning light is lit, the misalignment of the two groups of workpieces due to human factors and external collisions during the welding process is avoided, thereby improving the welding effect of the device; 2. Before welding, the present invention drives the traction wheel on the traction shaft to rotate through the traction motor, and the traction of the workpiece is achieved through the friction between the traction wheel and the bottom of the workpiece, which is convenient for users to load materials and reduces the burden on workers; 3. Before welding, the present invention applies clamping pressure to the clamping arc plate of the structural slider by starting the two sets of clamping hydraulic cylinders on the U-shaped fixing seat, thereby clamping and fixing the workpiece. This fixing method has a firm fixing effect and is convenient for users to install and disassemble, thereby ensuring the stability of the device during welding; 4. During welding, the present invention clamps and fixes the welding gun head through the pressure provided by the clamping cylinder and the rebound force of multiple groups of clamping springs on the outside of the clamping inner ring, which is convenient for users to install and disassemble. The driving motor drives the driving gear on the driving shaft to rotate, and the driving rack on the driving tube engages with the driving gear, thereby driving the driving tube and the welding assembly to rotate to realize the rotary welding function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a welding device for a pair of stainless steel bars according to the present invention.

[0019] Figure 2The figure is a schematic top view of the structure of a welding device for a pair of stainless steel bars according to the present invention.

[0020] Figure 3 The figure is a schematic diagram of the fixing mechanism structure of a welding device for a pair of stainless steel bars of the present invention.

[0021] Figure 4 The present invention is a schematic diagram of the traction mechanism structure of a welding device for a pair of stainless steel bars.

[0022] Figure 5 The present invention is a schematic diagram of the overall structure of a warning component of a welding device for a stainless steel bar pair.

[0023] Figure 6 The present invention is a schematic diagram of the driving mechanism structure of a welding device for stainless steel bar pairs.

[0024] Figure 7 The present invention is a schematic diagram of the welding mechanism structure of a welding device for welding a pair of stainless steel bars.

[0025] Figure 8 The present invention is a schematic diagram of the structure of a switch trigger mechanism of a welding device for a stainless steel bar pair.

[0026] Fig. 9 The present invention is a schematic diagram of the internal structure of a switch trigger mechanism of a welding device for a stainless steel bar pair.

[0027] Fig.10 The present invention is a schematic diagram of the structure of a warning mechanism of a welding device for a pair of stainless steel bars.

[0028] Fig.11 The present invention is a schematic diagram of the elastic metal sheet structure of a welding device for a pair of stainless steel bars.

[0029] In the figure: 1, U-shaped structural bottom plate; 2, horizontal load-bearing bottom plate; 3, fixing mechanism; 301, U-shaped fixing seat; 302, structural slider; 303, clamping arc plate; 304, damping plate pad; 305, clamping hydraulic cylinder; 306, hydraulic output rod; 307, damping rod; 308, fixing bolt; 309, T-shaped slide bar; 310, T-shaped slide groove; 4, traction mechanism; 401, traction bottom plate; 402, telescopic adjustment seat; 403, supporting semi-arc plate; 404, embedded plate; 405, movable ball; 406, traction semi-arc plate; 407, traction shaft; 408, traction wheel; 409, resistance bar; 410, traction bearing extension retractable rod; 411, traction motor; 412, L-shaped motor frame; 5, driving mechanism; 501, driving tube; 502, driving rack; 503, driving motor; 504, driving shaft; 505, driving bearing rod; 506, driving gear; 507, limiting outer ring; 508, supporting plate seat; 509, limiting rotation groove; 510, heat-resistant outer ring; 511, telescopic cylinder; 512, telescopic output rod; 513, grinding block; 6, welding mechanism; 601, connecting plate seat; 602, positioning outer ring; 603, clamping inner ring; 604, clamping spring; 605, clamping cylinder; 606, clamping output rod; 607, guide slide; 608, Guide slider; 609, welding gun head; 610, gas delivery butt pipe; 7, switch trigger mechanism; 701, switch slide; 702, switch plate sleeve; 703, lifting plate; 704, contact plate; 705, guide oblique end; 706, elastic rod; 707, electric telescopic rod; 708, cross connecting plate; 709, limiting slide; 710, limiting slide; 711, power input conductive plate; 712, movable conductive plate; 713, conductive spring; 714, power line tube; 715, power wiring copper nozzle; 716, fastening bolt; 717, power input line; 718, lifting slide; 719, electromagnetic input conductive plate; 720, electromagnetic line tube; 721. Electromagnetic input line; 8. Warning mechanism; 801. Assembly base plate; 802. Warning light; 803. Assembly bolt; 804. Lamp body output line; 805. Lamp body input line; 806. Electromagnetic seat; 807. Support bolt; 808. Electromagnetic core; 809. Electromagnetic wiring harness; 810. Power input terminal; 811. Electromagnet; 812. Magnetic lifting rod; 813. Electromagnetic strip; 814. Insulating sleeve; 815. Insulating movable rod; 816. Reset spring; 817. Insulating connecting ring; 818. Elastic metal sheet; 819. Conductive contact block; 820. Lamp body wiring copper nozzle; 821. Trigger input line; 822. Wire harness buckle. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of 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.

[0034] The present invention provides Figure 1-11A welding device for a pair of stainless steel bars shown in the figure comprises a U-shaped structural bottom plate 1, two groups of transverse load-bearing bottom plates 2 are fixedly connected to the outer side of the U-shaped structural bottom plate 1, and the two groups of transverse load-bearing bottom plates 2 are symmetrically distributed on the outer side of the U-shaped structural bottom plate 1, a fixing mechanism 3 is arranged on the top of the transverse load-bearing bottom plate 2, and a traction mechanism 4 is arranged on one side of the fixing mechanism 3, a driving mechanism 5 is arranged on the top of the U-shaped structural bottom plate 1, and a welding mechanism 6 is arranged on the outer side of the driving mechanism 5, two groups of switch trigger mechanisms 7 are arranged on the top of the U-shaped structural bottom plate 1, and the two groups of switch trigger mechanisms 7 are symmetrically distributed on the top of the U-shaped structural bottom plate 1, and a warning mechanism 8 is arranged on one side of the switch trigger mechanism 7; the traction mechanism 4 comprises a traction bottom plate 401 arranged on the top of the transverse load-bearing bottom plate 2, a telescopic adjustment seat 402 is fixedly connected to the top of the traction bottom plate 401, and a supporting semi-arc plate 4 is fixedly connected to the top of the telescopic adjustment seat 402 03, two groups of traction semi-arc plates 406 are fixedly connected to the outer side of the supporting semi-arc plate 403, and the two groups of traction semi-arc plates 406 are symmetrically distributed on the outer side of the supporting semi-arc plate 403, and a traction shaft 407 is movably connected to the bottom of the traction semi-arc plate 406, and a traction wheel 408 is installed on the outer side of the traction shaft 407, and a traction motor 411 is installed at one end of the traction shaft 407; the driving mechanism 5 includes a driving tube 501 arranged on the top of the U-shaped structure bottom plate 1, and two groups of driving racks 502 are fixedly connected to the outer side of the driving tube 501, and the two groups of driving racks 502 are symmetrically distributed on the outer side of the driving tube 501, and a driving motor 503 is installed on the top of the U-shaped structure bottom plate 1, and a driving shaft 504 is arranged on one side of the driving motor 503, and two groups of driving gears 506 are installed on the outer side of the driving shaft 504, and the two groups of driving gears 506 are symmetrically distributed on the outer side of the driving shaft 504;The switch trigger mechanism 7 includes two groups of switch slides 701 arranged on the outside of the driving tube 501, and the two groups of switch slides 701 are symmetrically distributed on the outside of the driving tube 501. The top of the switch slide 701 is movably connected with a switch plate cover 702, and the top of the switch plate cover 702 is movably connected with a lifting plate 703. A contact plate 704 is installed on the top of the lifting plate 703, and a guide oblique end 705 is provided at one end of the contact plate 704. Two groups of elastic rods 706 are arranged at the bottom of the lifting plate 703, and the two groups of elastic rods 706 are symmetrically distributed at the bottom of the lifting plate 703. An electric telescopic rod 707 is installed on one side of the switch slide 701. The lifting plate 703 A power input conductive plate 711 is installed at the bottom of the switch plate 703, and a movable conductive plate 712 is movably connected to the bottom of the power input conductive plate 711. Two groups of conductive springs 713 are installed on the top of the movable conductive plate 712. The two groups of conductive springs 713 are linearly distributed on the top of the movable conductive plate 712. A power line tube 714 is provided on one side of the power input conductive plate 711, and a power input line 717 is installed on one end of the power line tube 714. An electromagnetic input conductive plate 719 is installed on the top of the bottom wall of the switch plate sleeve 702, and an electromagnetic line tube 720 is provided on one side of the electromagnetic input conductive plate 719. An electromagnetic input The warning mechanism 8 includes an assembly base plate 801 disposed on the top of the U-shaped structure base plate 1, a warning light 802 is installed on the top of the assembly base plate 801, a lamp body output line 804 is arranged on one side of the warning light 802, and a lamp body input line 805 is arranged on the other side of the warning light 802, an electromagnetic seat 806 is installed on one side of the switch plate sleeve 702, an electromagnetic core 808 is arranged inside the electromagnetic seat 806, an electromagnetic wire harness 809 is wound around the outside of the electromagnetic core 808, a power input terminal 810 is arranged at one end of the electromagnetic wire harness 809, an electromagnet 811 is arranged on one side of the electromagnetic core 808, and a magnetic riser 811 is arranged on the outside of the electromagnet 811. A lowering rod 812, an electromagnetic strip 813 is arranged on one side of the electromagnet 811, an insulating sleeve 814 is installed on one side of the electromagnet 811, an insulating movable rod 815 is movably connected to one side of the insulating sleeve 814, a reset spring 816 is fixedly connected to one end of the insulating movable rod 815, an insulating connecting ring 817 is installed on one end of the insulating movable rod 815, an elastic metal sheet 818 is installed on one side of the insulating connecting ring 817, a conductive contact block 819 is arranged on one side of the elastic metal sheet 818, a lamp body wiring copper nozzle 820 is arranged on the outer side of the elastic metal sheet 818, and a trigger input line 821 is installed on one side of the lamp body wiring copper nozzle 820. ;

[0035] Among them, the U-shaped structural bottom plate 1 and the two groups of lateral load-bearing bottom plates 2 provide support for the device as a whole; the traction bottom plate 401 provides support for the traction assembly; the telescopic adjustment seat 402 is used to provide support for the upper supporting semi-arc plate 403 and can be used to adjust its height to suit the processing of workpieces with different diameters; the two groups of traction semi-arc plates 406 drive the rotation of the traction wheel 408 on the traction shaft 407 through the drive of the traction motor 411, and the traction of the workpiece is achieved through the friction between the traction wheel 408 and the workpiece; the driving tube 501 is a driving unit, which drives the driving motor 503 to mesh with the two groups of driving gears 506 through the two groups of driving racks 502 on its outer side, and drives the driving motor 503 to rotate when the driving motor 503 is powered on. The two sets of driving gears 506 on the movable shaft 504 rotate to drive the driving tube 501; the two sets of switch slides 701 provide support for the upper components; the lifting plate 703 is movably connected with the switch plate sleeve 702, and the rebound force of the two sets of elastic rods 706 provides support for the lifting plate 703, and resets when there is no contact; the contact plate 704 is the contact end between the lifting plate 703 and the workpiece. This component uses the guiding inclined end 705 so that the bottom end of the workpiece can stably press down the lifting plate 703 through the weight of the workpiece itself, thereby driving the power input conductive plate 711 and its bottom movable conductive plate 712 to move downward and contact with the electromagnetic input conductive plate 719, further making the power input line 717 and the electromagnetic The input line 721 is connected, so that the current passes through the electromagnetic structure to generate magnetic force; the use of two sets of conductive springs 713 on the top of the movable conductive plate 712 ensures that the rebound force can ensure the tightness of contact with the conductive structure below while the power is turned on; the assembly base 801 provides installation support for the warning light 802, so that the warning light 802 can be powered on and illuminated to achieve warning; after the trigger mechanism is triggered, the electromagnetic wire harness 809 wrapped around the electromagnetic core 808 in the electromagnetic seat 806 is connected to the electromagnetic input line 721 by the power input terminal 810, so that the current passes through the electromagnetic wire harness 809, thereby giving magnetic force to the electromagnetic core 808 and the electromagnet 811, and the magnetic force is transmitted to the electromagnetic strip 813 through the magnetic lifting rod 812. Thereby, the electromagnetic strip 813 contacts and adsorbs the workpiece, so that the switch plate cover 702 as a whole moves with the workpiece; wherein the insulating sleeve 814 and the insulating movable rod 815 move with the switch plate cover 702, and the two groups of workpieces are arranged opposite to each other, so that the conductive contact block 819 on the elastic metal sheet 818 at one end of the insulating movable rod 815 will come into contact, thereby connecting the trigger input line 821 with the lamp body input line 805 and the power line on the other group of insulating movable rods 815, so that the warning light 802 is powered on and illuminated to remind the staff, and when it illuminates, it proves that the workpieces are aligned, which is convenient for operation. At the same time, during subsequent welding, whether the warning light 802 is illuminated or not can also be used to judge whether the workpiece is misaligned.

[0036] The fixing mechanism 3 includes a U-shaped fixing seat 301 arranged on the top of the transverse load-bearing base plate 2, and two groups of structural sliders 302 are movably connected to the top of the U-shaped fixing seat 301, and the two groups of structural sliders 302 are symmetrically distributed on the top of the U-shaped fixing seat 301. A clamping arc plate 303 is fixedly connected to one side of the structural slider 302, and a damping plate pad 304 is installed on the inner side of the clamping arc plate 303. Two groups of clamping hydraulic cylinders 305 are installed on the outer side of the U-shaped fixing seat 301, and the two groups of clamping hydraulic cylinders 305 are symmetrically distributed on the outer side of the U-shaped fixing seat 301, and a hydraulic output rod 306 is arranged on one side of the clamping hydraulic cylinder 305.

[0037] Among them, the U-shaped fixing seat 301 provides support for the upper fixing component; the inner clamping arc plate 303 of the two sets of structural sliders 302 is the main clamping component of the workpiece, which clamps and fixes the workpiece through the friction force of the inner damping plate pad 304 and the power of the clamping hydraulic cylinder 305, thereby reducing the deviation during welding.

[0038] The fixing mechanism 3 includes two groups of damping rods 307 arranged on one side of the structural slider 302, and the two groups of damping rods 307 are symmetrically distributed on one side of the structural slider 302. One side of the clamping hydraulic cylinder 305 is threadedly connected with multiple groups of fixing bolts 308, and the multiple groups of fixing bolts 308 are rectangularly distributed on one side of the clamping hydraulic cylinder 305. The bottom of the structural slider 302 is fixedly connected with multiple groups of T-shaped slide bars 309, and the multiple groups of T-shaped slide bars 309 are linearly distributed at the bottom of the structural slider 302. The top of the U-shaped fixing seat 301 is provided with multiple groups of T-shaped grooves 310, and the multiple groups of T-shaped grooves 310 are linearly distributed on the top of the U-shaped fixing seat 301.

[0039] Among them, the use of two groups of damping rods 307 can follow the movement of the structural slider 302 and greatly improve the structural stability of the structural slider 302; the use of multiple groups of fixing bolts 308 realizes the installation of the clamping hydraulic cylinder 305; and the multiple groups of T-shaped slides 309 can be movably connected with the multiple groups of T-shaped slide grooves 310, thereby guiding the structural slider 302 and further improving the stability of the structural slider 302 when moving.

[0040] The traction mechanism 4 also includes a plurality of groups of interlocking plates 404 arranged on the inner wall of the supporting semi-arc plate 403, the plurality of groups of interlocking plates 404 are linearly distributed on the inner wall of the supporting semi-arc plate 403, the inner wall of the interlocking plate 404 is interlocked with a plurality of groups of movable balls 405, the plurality of groups of movable balls 405 are annularly distributed on the inner wall of the interlocking plate 404, a plurality of groups of resistance bars 409 are installed on the outer side of the traction wheel 408, the plurality of groups of resistance bars 409 are annularly distributed on the outer side of the traction wheel 408, two groups of traction bearing telescopic rods 410 are installed on the outer side of the traction shaft 407, the two groups of traction bearing telescopic rods 410 are symmetrically distributed on the outer side of the traction shaft 407, and an L-shaped motor frame 412 is installed on the outer side of the traction motor 411.

[0041] Among them, multiple groups of interlocking plates 404 provide support for multiple groups of movable balls 405, and the inner wall grooves thereof can accommodate the multiple groups of movable balls 405 to rotate while limiting them, thereby reducing the friction resistance of the workpiece during movement through the rolling rotation of the multiple groups of movable balls 405, thereby improving the traction transmission efficiency of the workpiece; the use of multiple groups of resistance strips 409 greatly improves the friction resistance between the traction wheel 408 and the workpiece, thereby further improving the traction efficiency of the workpiece; the two groups of traction bearing telescopic rods 410 are telescopic structures, which can provide support for the traction shaft 407 while adjusting the height of the traction wheel 408.

[0042] The driving mechanism 5 also includes a driving bearing rod 505 arranged at one end of the driving shaft 504, and two groups of limiting outer rings 507 are fixedly connected to the outer side of the driving tube 501, and the two groups of limiting outer rings 507 are symmetrically distributed on the outer side of the driving tube 501, and two groups of support plate seats 508 are fixedly connected to the top of the U-shaped structure bottom plate 1, and the two groups of support plate seats 508 are symmetrically distributed on the top of the U-shaped structure bottom plate 1, and a limiting rotation groove 509 is opened on the top of the support plate seat 508, and a heat-resistant outer ring 510 is fixedly connected to the outer side of the driving tube 501.

[0043] The driving bearing rod 505 is used to provide support for the driving shaft 504, and the two sets of limiting outer rings 507 can be movably connected with the limiting grooves 509 on the two sets of support plate seats 508, thereby providing support for the entire driving assembly without affecting the rotation of the driving tube 501.

[0044] The driving mechanism 5 further comprises a telescopic cylinder 511 disposed in the wall groove of the heat-resistant outer ring 510 , a telescopic output rod 512 is disposed on one side of the telescopic cylinder 511 , and a grinding block 513 is installed at one end of the telescopic output rod 512 .

[0045] Among them, the use of the telescopic cylinder 511 can drive the grinding block 513 to move and contact the welding part through the telescopic output rod 512 when power is turned on, so as to achieve grinding through the friction between the grinding block 513 and the welding part, thereby improving the aesthetics while reducing the subsequent grinding burden of the staff.

[0046] The welding mechanism 6 includes two groups of connecting plate seats 601 arranged on the top of the heat-resistant outer ring 510, and the two groups of connecting plate seats 601 are symmetrically distributed on the top of the heat-resistant outer ring 510. A positioning outer ring 602 is movably connected to one side of the connecting plate seat 601, and a clamping inner ring 603 is movably connected to the inner side of the positioning outer ring 602. A plurality of clamping springs 604 are fixedly connected to the outer side of the clamping inner ring 603, and the plurality of clamping springs 604 are distributed in a ring shape on the outer side of the clamping inner ring 603. A clamping cylinder 605 is installed on one side of the connecting plate seat 601, and a clamping output rod 606 is provided on one side of the clamping cylinder 605.

[0047] Among them, the use of two sets of connecting plate seats 601 provides support for the upper components; the positioning outer ring 602 provides support for the internal clamping components and is driven by the clamping cylinder 605; the clamping inner ring 603 clamps and fixes the welding equipment through the rebound force of multiple sets of clamping springs 604 and the pressure of the clamping cylinder 605. This fixing method is convenient for users to install and disassemble.

[0048] The welding mechanism 6 also includes two groups of guide slide bars 607 arranged on one side of the connecting plate seat 601, and the two groups of guide slide bars 607 are symmetrically distributed on one side of the connecting plate seat 601. Two groups of guide slide bars 608 are fixedly connected to the outer side of the positioning outer ring 602, and the two groups of guide slide bars 608 are symmetrically distributed on the outer side of the positioning outer ring 602. A welding gun head 609 is installed on the inner side of the positioning outer ring 602, and a gas supply butt pipe 610 is installed on the top of the welding gun head 609.

[0049] Among them, the sliding grooves on the two groups of guide sliders 608 can be movably connected with the two groups of guide slide rods 607, so as to realize the guidance of the positioning outer ring 602 and ensure the clamping and fixing effect; the welding component port of the welding gun head 609, its top gas supply butt pipe 610 supplies gas to the welding gun head 609, and can be connected with the rotatable sealing part to cooperate with the overall rotation of the mechanism.

[0050] The switch trigger mechanism 7 also includes a cross connecting plate 708 arranged at one end of the electric telescopic rod 707, one end of the electric telescopic rod 707 is fixedly connected to the switch plate sleeve 702 through the cross connecting plate 708, two groups of limiting slide bars 709 are fixedly connected to the outer side of the switch plate sleeve 702, and the two groups of limiting slide bars 709 are symmetrically distributed on the outer side of the switch plate sleeve 702, two groups of limiting slide grooves 710 are opened on the outer side of the switch slide seat 701, and the two groups of limiting slide grooves 710 are symmetrically distributed on the outer side of the switch slide seat 701, one end of the power line tube 714 is provided with a power wiring copper nozzle 715, the outer side of the power wiring copper nozzle 715 is threadedly connected with a fastening bolt 716, and the outer side of the switch plate sleeve 702 is provided with a lifting slide groove 718.

[0051] Among them, the use of the cross connecting plate 708 greatly improves the connection effect between the electric telescopic rod 707 and the switch plate cover 702, ensuring the stability of lateral movement; the two groups of limiting slide bars 709 can be movably connected with the two groups of limiting slide grooves 710, thereby guiding the lateral movement of the switch plate cover 702 and further improving the stability during movement; the power wiring copper nozzle 715 is made of metal copper, which has good conductivity and ductility, and the use of fastening bolts 716 makes it easy to fasten the opening of the copper nozzle to ensure the wiring effect; the opening of the lifting slide groove 718 allows the power line tube 714 to move longitudinally, which is convenient for lifting.

[0052] The warning mechanism 8 also includes a plurality of sets of assembly bolts 803 arranged on the top of the base plate of the warning light 802, and the plurality of sets of assembly bolts 803 are distributed in a ring shape on the top of the base plate of the warning light 802. The outer side of the electromagnetic seat 806 is threadedly connected with a plurality of sets of support bolts 807, and the plurality of support bolts 807 are distributed in a ring shape on the outer side of the electromagnetic seat 806. A wiring harness buckle 822 is installed on the outer side of the insulating movable rod 815.

[0053] Among them, multiple groups of assembly bolts 803 can be threadedly connected with the threaded holes on the assembly base plate 801, so as to realize the installation of the warning light 802. This installation method is convenient for the user to inspect and replace the warning light 802; multiple groups of support bolts 807 can be threadedly connected with the threaded holes on the switch plate sleeve 702, so as to realize the installation of the electromagnetic seat 806; the use of the wiring harness buckle 822 can limit the trigger input line 821 to avoid the wiring harness from being skewed and worn.

[0054] Working principle: After the user connects each set of wiring harnesses, the user places two sets of workpieces to be welded in two sets of supporting semi-arc plates 403. The workpieces due to their arc-shaped structures will stay at the bottom of the supporting structure. Then the user powers on the traction motor 411. When the traction motor 411 is powered on and started, the traction wheel 408 on the traction shaft 407 will be driven to rotate on the traction bearing telescopic rod 410 through the output shaft, so that the friction between the traction wheel 408 and the workpiece drives the two sets of workpieces to move synchronously in the direction of the U-shaped structure bottom plate 1, thereby realizing the traction function of the device; when the workpiece moves to the U-shaped structure When the bottom plate 1 is moved upward, it will contact the guide oblique end 705 of the contact plate 704 above the switch plate sleeve 702, and the guide workpiece of the oblique structure will squeeze the lifting plate 703, so that the lifting plate 703 overcomes the rebound force of the spring in the elastic rod 706 and drives the power input conductive plate 711 and the lower movable conductive plate 712 to move downward. When the movable conductive plate 712 contacts the electromagnetic input conductive plate 719, the power input line 717 will be connected with the electromagnetic input line 721, so that the power input end 810 of the electromagnetic wire harness 809 in the electromagnetic seat 806 will pass the current, so as to provide the electromagnetic core 806 with a positive current. The electromagnet 811 on the 8 imparts magnetic force, which is transmitted to the electromagnetic strip 813 through the magnetic lifting rod 812, so that the lifting plate 703 and the insulating sleeve 814 on the electromagnetic seat 806 on one side of the switch plate sleeve 702 and other components move into the driving tube 501 along with the workpiece, and the two groups of insulating sleeves 814 approach each other so that the two groups of insulating movable rods 815 contact each other. When the conductive contact blocks 819 on the two groups of insulating movable rods 815 contact each other, the trigger input line 821 on the side elastic metal sheet 818 will be connected with the lamp body input line 805, thereby supplying power to the warning light 802. When the warning light When the warning light 802 is powered on, it will light up and remind the staff that the two groups of workpieces have been aligned. On the contrary, if the warning light 802 does not light up, it means that the workpieces are not aligned, and the staff needs to adjust the position and angle of the workpieces to the position where the warning light 802 lights up, thereby realizing the positioning and alignment function of the device; then the user powers on the two groups of clamping hydraulic cylinders 305 on the U-shaped fixing seat 301. When the clamping hydraulic cylinders 305 are powered on and started, the hydraulic output rod 306 will push the structural slider 302 and the clamping arc plate 303 to move along the T-shaped slide groove 310 to clamp and fix the workpiece, thereby realizing the fixing function of the device;Then the user inserts the welding gun head 609 into the two sets of positioning outer rings 602 and deep into the heat-resistant outer ring 510 to contact the welding points of the two sets of workpieces, and energizes the two sets of clamping cylinders 605. When the clamping cylinders 605 are energized and started, the two sets of positioning outer rings 602 are pushed inward through the clamping output rod 606, so that the welding gun head 609 is clamped and fixed by the clamping pressure of the clamping cylinders 605 and the rebound force of the multiple sets of clamping springs 604 on the periphery of the clamping inner ring 603. Then the user connects the gas supply butt pipe 610 and ignites it for welding. At the same time, the user energizes the driving motor 503. When the driving motor 503 is energized The start-up will drive the two sets of driving gears 506 on the driving shaft 504 to rotate, thereby driving the driving tube 501 and the welding equipment to rotate on the support plate seat 508 through the meshing of the driving rack 502 and the driving gear 506, and welding the contact position of the workpiece. During the welding process, the user can observe whether the warning light 802 is lit to determine whether the workpiece is misaligned. After the welding is completed, the user can cut off the power of the electromagnetic harness 809 in the electromagnetic seat 806 and drive the switch plate sleeve 702 and other components to reset through the electric telescopic rod 707, thereby realizing a stable welding function of a welding device for stainless steel bar assembly. ;

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding device for stainless steel bar pairs, comprising a U-shaped structural bottom plate (1), characterized in that: Two groups of transverse load-bearing bottom plates (2) are fixedly connected to the outside of the U-shaped structure bottom plate (1), and the two groups of transverse load-bearing bottom plates (2) are symmetrically distributed on the outside of the U-shaped structure bottom plate (1). A fixing mechanism (3) is provided on the top of the transverse load-bearing bottom plate (2), and a traction mechanism (4) is provided on one side of the fixing mechanism (3). A driving mechanism (5) is provided on the top of the U-shaped structure bottom plate (1), and a welding mechanism (6) is provided on the outside of the driving mechanism (5). Two groups of switch trigger mechanisms (7) are provided on the top of the U-shaped structure bottom plate (1), and the two groups of switch trigger mechanisms (7) are symmetrically distributed on the top of the U-shaped structure bottom plate (1), and a warning mechanism (8) is provided on one side of the switch trigger mechanism (7); The traction mechanism (4) comprises a traction base plate (401) arranged on the top of the transverse load-bearing base plate (2); the top of the traction base plate (401) is fixedly connected to a telescopic adjustment seat (402); the top of the telescopic adjustment seat (402) is fixedly connected to a supporting semi-arc plate (403); two groups of traction semi-arc plates (406) are fixedly connected to the outer side of the supporting semi-arc plate (403); the two groups of traction semi-arc plates (406) are symmetrically distributed on the outer side of the supporting semi-arc plate (403); the bottom of the traction semi-arc plate (406) is movably connected to a traction shaft (407); a traction wheel (408) is installed on the outer side of the traction shaft (407); and a traction motor (411) is installed at one end of the traction shaft (407); The driving mechanism (5) comprises a driving tube (501) arranged on the top of the U-shaped structure bottom plate (1); two groups of driving racks (502) are fixedly connected to the outer side of the driving tube (501); the two groups of driving racks (502) are symmetrically distributed on the outer side of the driving tube (501); a driving motor (503) is installed on the top of the U-shaped structure bottom plate (1); a driving shaft (504) is arranged on one side of the driving motor (503); two groups of driving gears (506) are installed on the outer side of the driving shaft (504); the two groups of driving gears (506) are symmetrically distributed on the outer side of the driving shaft (504); The switch trigger mechanism (7) comprises two groups of switch slides (701) arranged on the outside of the driving tube (501), the two groups of switch slides (701) are symmetrically distributed on the outside of the driving tube (501), the top of the switch slide (701) is movably connected to a switch plate sleeve (702), the top of the switch plate sleeve (702) is movably connected to a lifting plate (703), the top of the lifting plate (703) is installed with a contact plate (704), one end of the contact plate (704) is provided with a guiding inclined end (705), the bottom of the lifting plate (703) is provided with two groups of elastic rods (706), the two groups of elastic rods (706) are symmetrically distributed on the bottom of the lifting plate (703), one side of the switch slide (701) is installed with an electric telescopic rod (707), the lifting plate (703) is installed with a guide inclined end (705), and the lifting plate (703) is installed with a guide inclined end (705). A power input conductive plate (711) is installed at the bottom of the descending plate (703), a movable conductive plate (712) is movably connected to the bottom of the power input conductive plate (711), two groups of conductive springs (713) are installed at the top of the movable conductive plate (712), and the two groups of conductive springs (713) are linearly distributed on the top of the movable conductive plate (712), a power line tube (714) is provided on one side of the power input conductive plate (711), and a power input line (717) is installed at one end of the power line tube (714), an electromagnetic input conductive plate (719) is installed at the top of the bottom wall of the switch plate sleeve (702), an electromagnetic line tube (720) is provided on one side of the electromagnetic input conductive plate (719), and an electromagnetic input line (721) is installed on one side of the electromagnetic line tube (720); The warning mechanism (8) comprises an assembly base plate (801) arranged on the top of the U-shaped structural base plate (1); a warning light (802) is installed on the top of the assembly base plate (801); a light output line (804) is arranged on one side of the warning light (802); a light input line (805) is arranged on the other side of the warning light (802); an electromagnetic seat (806) is installed on one side of the switch plate sleeve (702); an electromagnetic core (808) is arranged inside the electromagnetic seat (806); an electromagnetic wire bundle (809) is wound around the outside of the electromagnetic core (808); a power input terminal (810) is arranged at one end of the electromagnetic wire bundle (809); an electromagnet (811) is arranged on one side of the electromagnetic core (808); and a magnetic conductor is arranged on the outside of the electromagnet (811). A lifting rod (812), an electromagnetic strip (813) is provided on one side of the electromagnet (811), an insulating sleeve (814) is installed on one side of the electromagnet (811), an insulating movable rod (815) is movably connected to one side of the insulating sleeve (814), one end of the insulating movable rod (815) is fixedly connected to a return spring (816), one end of the insulating movable rod (815) is installed with an insulating connecting ring (817), one side of the insulating connecting ring (817) is installed with an elastic metal sheet (818), one side of the elastic metal sheet (818) is provided with a conductive contact block (819), a lamp body wiring copper nozzle (820) is provided on the outer side of the elastic metal sheet (818), and a trigger input line (821) is installed on one side of the lamp body wiring copper nozzle (820).

2. A welding device for stainless steel bar pairs according to claim 1, characterized in that: The fixing mechanism (3) comprises a U-shaped fixing seat (301) arranged on the top of the transverse load-bearing base plate (2); two groups of structural sliders (302) are movably connected to the top of the U-shaped fixing seat (301); the two groups of structural sliders (302) are symmetrically distributed on the top of the U-shaped fixing seat (301); a clamping arc plate (303) is fixedly connected to one side of the structural slider (302); a damping plate pad (304) is installed on the inner side of the clamping arc plate (303); two groups of clamping hydraulic cylinders (305) are installed on the outer side of the U-shaped fixing seat (301); the two groups of clamping hydraulic cylinders (305) are symmetrically distributed on the outer side of the U-shaped fixing seat (301); and a hydraulic output rod (306) is provided on one side of the clamping hydraulic cylinder (305).

3. A welding device for stainless steel bar pairs according to claim 2, characterized in that: The fixing mechanism (3) comprises two groups of damping rods (307) arranged on one side of the structural slider (302), the two groups of damping rods (307) being symmetrically distributed on one side of the structural slider (302); a plurality of groups of fixing bolts (308) being threadedly connected to one side of the clamping hydraulic cylinder (305), the plurality of groups of fixing bolts (308) being distributed in a rectangular shape on one side of the clamping hydraulic cylinder (305); a plurality of groups of T-shaped slide bars (309) being fixedly connected to the bottom of the structural slider (302), the plurality of groups of T-shaped slide bars (309) being distributed linearly on the bottom of the structural slider (302); a plurality of groups of T-shaped slide grooves (310) being provided on the top of the U-shaped fixing seat (301), the plurality of groups of T-shaped slide grooves (310) being distributed linearly on the top of the U-shaped fixing seat (301).

4. The welding device for stainless steel bar pairs according to claim 1, characterized in that: The traction mechanism (4) further comprises a plurality of groups of interlocking plates (404) arranged on the inner wall of the supporting semi-arc plate (403), the plurality of groups of interlocking plates (404) being linearly distributed on the inner wall of the supporting semi-arc plate (403), a plurality of groups of movable balls (405) being interlocked on the inner wall of the interlocking plate (404), the plurality of groups of movable balls (405) being annularly distributed on the inner wall of the interlocking plate (404), a plurality of groups of resistance bars (409) being installed on the outer side of the traction wheel (408), the plurality of groups of resistance bars (409) being annularly distributed on the outer side of the traction wheel (408), two groups of traction bearing telescopic rods (410) being installed on the outer side of the traction shaft (407), the two groups of traction bearing telescopic rods (410) being symmetrically distributed on the outer side of the traction shaft (407), and an L-shaped motor frame (412) being installed on the outer side of the traction motor (411).

5. The welding device for stainless steel bar pairs according to claim 1, characterized in that: The driving mechanism (5) further comprises a driving bearing rod (505) arranged at one end of the driving shaft (504); two groups of limiting outer rings (507) are fixedly connected to the outer side of the driving tube (501); the two groups of limiting outer rings (507) are symmetrically distributed on the outer side of the driving tube (501); two groups of supporting plate seats (508) are fixedly connected to the top of the U-shaped structure bottom plate (1); the two groups of supporting plate seats (508) are symmetrically distributed on the top of the U-shaped structure bottom plate (1); a limiting rotation groove (509) is opened on the top of the supporting plate seat (508); and a heat-resistant outer ring (510) is fixedly connected to the outer side of the driving tube (501).

6. A welding device for stainless steel bar pairs according to claim 5, characterized in that: The driving mechanism (5) further comprises a telescopic cylinder (511) disposed in the wall groove of the heat-resistant outer ring (510), a telescopic output rod (512) being disposed on one side of the telescopic cylinder (511), and a grinding block (513) being mounted on one end of the telescopic output rod (512).

7. The welding device for stainless steel bar pairs according to claim 5, characterized in that: The welding mechanism (6) comprises two groups of connection plate seats (601) arranged on the top of the heat-resistant outer ring (510), the two groups of connection plate seats (601) are symmetrically distributed on the top of the heat-resistant outer ring (510), one side of the connection plate seat (601) is movably connected to a positioning outer ring (602), the inner side of the positioning outer ring (602) is movably connected to a clamping inner ring (603), the outer side of the clamping inner ring (603) is fixedly connected to multiple groups of clamping springs (604), the multiple groups of clamping springs (604) are distributed in a ring shape on the outer side of the clamping inner ring (603), a clamping cylinder (605) is installed on one side of the connection plate seat (601), and a clamping output rod (606) is provided on one side of the clamping cylinder (605).

8. The welding device for stainless steel bar pairs according to claim 7, characterized in that: The welding mechanism (6) further comprises two groups of guide slide bars (607) arranged on one side of the connecting plate seat (601), the two groups of guide slide bars (607) being symmetrically distributed on one side of the connecting plate seat (601), two groups of guide slide bars (608) being fixedly connected to the outer side of the positioning outer ring (602), the two groups of guide slide bars (608) being symmetrically distributed on the outer side of the positioning outer ring (602), a welding gun head (609) being installed on the inner side of the positioning outer ring (602), and a gas supply butt pipe (610) being installed on the top of the welding gun head (609).

9. The welding device for stainless steel bar pairs according to claim 1, characterized in that: The switch trigger mechanism (7) further comprises a cross connecting plate (708) arranged at one end of the electric telescopic rod (707), one end of the electric telescopic rod (707) being fixedly connected to the switch plate sleeve (702) via the cross connecting plate (708), two groups of limiting slide bars (709) being fixedly connected to the outer side of the switch plate sleeve (702), the two groups of limiting slide bars (709) being symmetrically distributed on the outer side of the switch plate sleeve (702), two groups of limiting slide grooves (710) being opened on the outer side of the switch slide seat (701), the two groups of limiting slide grooves (710) being symmetrically distributed on the outer side of the switch slide seat (701), one end of the power line tube (714) being provided with a power wiring copper nozzle (715), the outer side of the power wiring copper nozzle (715) being threadedly connected with a fastening bolt (716), and a lifting slide groove (718) being opened on the outer side of the switch plate sleeve (702).

10. The welding device for stainless steel bar pairs according to claim 1, characterized in that: The warning mechanism (8) further comprises a plurality of groups of assembly bolts (803) disposed on the top of the bottom plate of the warning light (802), the plurality of groups of assembly bolts (803) being distributed in a ring shape on the top of the bottom plate of the warning light (802), the outer side of the electromagnetic seat (806) being threadedly connected to a plurality of groups of support bolts (807), the plurality of groups of support bolts (807) being distributed in a ring shape on the outer side of the electromagnetic seat (806), and a wiring harness buckle (822) being installed on the outer side of the insulating movable rod (815).

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