Wire cushion type seam welder

Abstract

The utility model relates to the technical field of seam welding machines, in particular to a wire padding type seam welding machine which comprises a machine body, a lower welding wheel and an upper welding wheel capable of moving up and down and rotating are arranged on the machine body, an upper welding wire passes through the center of the working face of the upper welding wheel, and a lower welding wire passes through the center of the working face of the lower welding wheel. The upper welding wire and the lower welding wire are respectively contacted with the upper and lower surfaces of a welding workpiece; the rotating linear speed of the upper welding wheel, the moving linear speed of the upper welding wire and the moving linear speed of the lower welding wire are the same. The welding device is reasonable in structure, the welding wires are arranged on the upper welding wheel and the lower welding wheel and serve as middle electrodes, pollution of a coating of a coating workpiece to the welding wheels during welding can be effectively reduced, the welding wheels do not need to be cleaned for a long time, maintenance time is saved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seam welding machines, in particular to a wire pad type seam welding machine. Background Art

[0002] Seam welding machine refers to a resistance welding machine that assembles the weldment into a lap joint or butt joint and places it between two roller electrodes. The roller electrodes pressurize the weldment and rotate, and continuously or intermittently pulse power to form a continuous weld. It can also be said that seam welding machine is an evolution of spot welding. Seam welding is widely used in the manufacture of joints that require sealing, and sometimes it is also used to weld ordinary non-sealed sheet metal parts. The thickness of the metal material to be welded is usually 0.1 to 2.5 mm.

[0003] During use, it was found that the existing seam welding machine uses upper and lower welding wheels to perform direct contact welding on the workpiece, which easily causes the coating on the workpiece to contaminate the upper and lower welding wheels during welding. For example, the welding of coated steel plates requires frequent cleaning of the upper and lower welding wheels. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a wire pad type seam welding machine.

[0005] The wire pad type seam welding machine comprises a machine body, on which a lower welding wheel and an upper welding wheel capable of moving up and down and rotating are arranged, an upper welding wire passes through the center of a working surface of the upper welding wheel, and a lower welding wire passes through the center of a working surface of the lower welding wheel. During welding, the upper welding wire and the lower welding wire contact the upper and lower surfaces of a welding workpiece respectively; the rotation linear speed of the upper welding wheel, the moving linear speed of the upper welding wire and the moving linear speed of the lower welding wire are the same.

[0006] Furthermore, the upper welding wheel is provided with a driving device for controlling the rotation of the upper welding wheel and a welding cylinder for controlling the upper welding wheel and the driving device of the upper welding wheel to move up and down together on the machine body, and the lower welding wheel is rotatably connected to the machine body and arranged at the lower side of the upper welding wheel;

[0007] The machine body is provided with a winding roller for the upper welding wire and a winding roller for the lower welding wire, and the winding rollers are provided with a driving device.

[0008] Furthermore, a plurality of fixed pulleys are provided on the machine body for the upper welding wire to be diverted from the wire feed end through the upper welding wheel to the winding roller of the upper welding wire;

[0009] The machine body is also provided with a plurality of fixed pulleys for turning the lower welding wire from the wire feeding end through the lower welding wheel to the winding roller of the lower welding wire.

[0010] Furthermore, the driving device for controlling the rotation of the upper welding wheel uses a driving motor to drive the upper welding wheel to rotate independently, and the winding roller of the upper welding wire and the winding roller of the lower welding wire are driven by the same driving motor.

[0011] Furthermore, the upper welding wire and the lower welding wire are both made of copper wire material.

[0012] Furthermore, a flattening device for pressing the copper wire of the original cross section into a flat shape is provided on the upper welding wire feeding path before the upper welding wheel and on the lower welding wire feeding path before the lower welding wheel.

[0013] Furthermore, the flattening device comprises an upper rolling roller and a lower rolling roller, and the round copper wire passes through the upper rolling roller and the lower rolling roller to form a flat copper wire.

[0014] Advantages of the utility model: The utility model has a reasonable structure, and welding wires are arranged on the upper welding wheel and the lower welding wheel. The welding wires serve as intermediate electrodes, which can effectively reduce the pollution of the coating of the coated workpiece to the welding wheel during welding. The welding wheel does not need to be cleaned for a long time, which saves maintenance time and improves production efficiency. The welding wires make the welding area consistent and the current stable and reliable.

[0015] The rotation linear speed of the upper welding wheel, the moving linear speed of the upper welding wire and the moving linear speed of the lower welding wire are the same, which is beneficial to the consistency of the welding area and improves the current stability;

[0016] The welding wire is a copper wire with a circular cross-section that is pressed into a flat shape so that the copper wire is in uniform contact with the welding material during the pressure welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the wire pad type seam welding machine of the utility model;

[0018] Figure 2 It is a side view schematic diagram of the wire pad type seam welding machine of the utility model;

[0019] Figure 3 It is a driving schematic diagram of the upper welding wheel of the wire pad type seam welding machine of the utility model;

[0020] Figure 4 It is a driving schematic diagram of two winding rollers of the wire pad type seam welding machine of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of a welding wire flattening device of a wire pad type seam welding machine.

[0022] As shown in the figure: 1. Machine body; 2. Upper welding wheel; 3. Lower welding wheel; 4. Upper welding wire; 5. Lower welding wire; 6. Driving device; 7. Welding cylinder; 8. Winding roller; 9. Flattening device; 10. Steering fixed pulley; 601. Driving motor; 901. Upper rolling roller; 902. Lower rolling roller. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the description of the embodiments of the present utility model, if a feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it may be directly set, fixed, connected to another feature, or indirectly set, fixed, connected, or installed on another feature.

[0026] In the description of the embodiments of the present utility model, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] The wire pad type seam welding machine comprises a machine body 1, on which a lower welding wheel 3 and an upper welding wheel 2 capable of moving up and down and rotating are arranged, an upper welding wire 4 passes through the center of the working surface of the upper welding wheel 2, and a lower welding wire 5 passes through the center of the working surface of the lower welding wheel 3. During welding, the upper welding wire 4 and the lower welding wire 5 are respectively in contact with the upper and lower surfaces of the welding workpiece;

[0029] The rotation linear speed of the upper welding wheel 2, the moving linear speed of the upper welding wire 4 and the moving linear speed of the lower welding wire 5 are the same.

[0030] The upper welding wheel 2 is provided with a driving device 6 for controlling the rotation of the upper welding wheel 2 and a welding cylinder 7 for controlling the upper welding wheel 2 and the driving device 6 of the upper welding wheel 2 to move up and down together on the machine body 1. The lower welding wheel 3 is rotatably connected to the machine body 1 and is arranged at the lower side of the upper welding wheel 2.

[0031] A winding roller 8 for the upper welding wire 4 and a winding roller 8 for the lower welding wire 5 are arranged on the machine body 1 , and the winding rollers 8 are arranged with a driving device 6 .

[0032] The machine body 1 is provided with a plurality of fixed pulleys 10 for the upper welding wire 4 to pass from the wire feeding end through the upper welding wheel 2 to the winding roller 8 of the upper welding wire 4;

[0033] The machine body 1 is also provided with a plurality of fixed pulleys 10 for diverting the lower welding wire 5 from the wire feeding end through the lower welding wheel 3 to the winding roller 8 of the lower welding wire 5 .

[0034] The driving device 6 for controlling the rotation of the upper welding wheel 2 uses a driving motor 601 to drive the upper welding wheel 2 to rotate independently. Figure 3 As shown, the winding roller 8 of the upper welding wire 4 and the winding roller 8 of the lower welding wire 5 are driven by the same driving motor 601. Figure 4 As shown, a driving motor 6 realizes the synchronous rotation of two winding rollers 8 through a plurality of sprockets and chains.

[0035] The upper welding wire 4 and the lower welding wire 5 are both made of copper wire material.

[0036] On the wire feeding path of the upper welding wire 4 before the upper welding wheel 2 and on the wire feeding path of the lower welding wire 5 before the lower welding wheel 3, there are flattening devices 9 for pressing the copper wire of the original cross section into a flat shape.

[0037] like Figure 5 As shown, the flattening device 9 includes an upper rolling roller 901 and a lower rolling roller 902, and the round copper wire passes between the upper rolling roller 901 and the lower rolling roller 902 to form a flat copper wire.

[0038] When the utility model is in use, the upper welding wire 4 is connected to the upper welding wire feeding device, and the lower welding wire 5 is connected to the lower welding wire feeding device. The upper welding wire 4 passes through a plurality of steering fixed pulleys 10 and a flattening device 9 and enters the upper welding wheel 2, is wound around the upper welding wheel 2, and is then connected to the corresponding winding roller 8 through a plurality of steering fixed pulleys 10. The lower welding wire 5 passes through a plurality of steering fixed pulleys 10 and a flattening device 9 and enters the lower welding wheel 3, is wound around the lower welding wheel 3, and is then connected to the corresponding winding roller 8 through a plurality of steering fixed pulleys 10.

[0039] During welding, the workpiece can be welded when the welding wires passing through the upper welding wheel 2 and the lower welding wheel 3 are both flat. During the welding process, the workpiece to be welded is placed between the upper welding wire 4 of the upper welding wheel 2 and the lower welding wire 5 of the lower welding wheel 3, and the welding cylinder 7 is controlled to drive the upper welding wheel 2 and the upper welding wire 4 to move downward for welding. During this period, the rotation linear speed of the upper welding wheel 2, the moving linear speed of the upper welding wire 4 and the moving linear speed of the lower welding wire 5 are always kept the same.

[0040] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. Wire pad type seam welding machine, characterized by: The machine body comprises a lower welding wheel and an upper welding wheel capable of moving up and down and rotating. An upper welding wire passes through the center of a working surface of the upper welding wheel, and a lower welding wire passes through the center of a working surface of the lower welding wheel. During welding, the upper welding wire and the lower welding wire contact the upper and lower surfaces of a welding workpiece respectively. The rotation linear speed of the upper welding wheel, the moving linear speed of the upper welding wire and the moving linear speed of the lower welding wire are the same.

2. The wire pad type seam welding machine according to claim 1, characterized in that: The upper welding wheel is provided with a driving device for controlling the rotation of the upper welding wheel and a welding cylinder for controlling the upper welding wheel and the driving device of the upper welding wheel to move up and down together on the machine body; the lower welding wheel is rotatably connected to the machine body and arranged at the lower side of the upper welding wheel; A winding roller for the upper welding wire and a winding roller for the lower welding wire are arranged on the machine body, and the winding rollers are arranged with driving devices.

3. The wire pad type seam welding machine according to claim 2, characterized in that: The machine body is provided with a plurality of fixed pulleys for the upper welding wire to pass from the wire feeding end through the upper welding wheel to the winding roller of the upper welding wire; The machine body is also provided with a plurality of fixed pulleys for turning the lower welding wire from the wire feeding end through the lower welding wheel to the winding roller of the lower welding wire.

4. The wire pad type seam welding machine according to claim 2, characterized in that: The driving device for controlling the rotation of the upper welding wheel adopts a driving motor to drive the upper welding wheel to rotate independently, and the winding roller of the upper welding wire and the winding roller of the lower welding wire are driven by the same driving motor.

5. The wire pad type seam welding machine according to any one of claims 1 to 4, characterized in that: The upper welding wire and the lower welding wire are both made of copper wire material.

6. The wire pad type seam welding machine according to claim 5, characterized in that: A flattening device for pressing the copper wire with an original cross section into a flat shape is arranged on an upper welding wire feeding path before the upper welding wheel and on a lower welding wire feeding path before the lower welding wheel.

7. The wire pad type seam welding machine according to claim 6, characterized in that: The flattening device comprises an upper rolling roller and a lower rolling roller, and the round copper wire passes through the upper rolling roller and the lower rolling roller to form a flat copper wire.

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