Small electric resistance welding executing mechanism suitable for curved surface welding

Abstract

The utility model discloses a small electric resistance welding actuating mechanism suitable for curved surface welding, which comprises a welding gun mounting plate, two sides of the welding gun mounting plate are hinged with side plates, the bottoms of the welding gun mounting plate and the side plates are respectively provided with a roller assembly, each roller assembly comprises a mounting frame and a roller arranged on the mounting frame, and the bottom of the welding gun mounting plate is also provided with a driving motor. The driving motor drives the rollers to rotate; the upper portion and the lower portion of the rear side of the welding gun installation plate are respectively provided with a telescopic assembly A and a telescopic assembly B, the top of the telescopic assembly A is provided with a welding gun fixing structure, the lower portion of the telescopic assembly B is fixedly provided with a U-shaped frame, the two ends of the U-shaped frame are respectively provided with a guide wheel, the bottom of the U-shaped frame is further provided with a telescopic assembly C, and the bottom of the telescopic assembly C is provided with a welding gun fixing structure. And the method has certain universality and certain technical progress.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding equipment field especially applicable to small resistance welding executing mechanism for curved surface welding. BACKGROUND

[0002] With the popularization of electronic products, the demand for batteries increases year by year, and people's quality requirements for batteries are also getting higher and higher. The existing resistance welding method is generally double needle spot welding, that is, it includes two welding needles, a cylinder pushing device and a power setting box. When in use, the two welding needles are needed to be simultaneously spot-welded on the metal surface, so that the two welding needle tips instantaneously heat up to form a molten core at the welding spot of the two metal surfaces to realize welding.

[0003] The existing welding technology generally uses a mechanical arm for curved surface welding. However, the high cost makes the production cost too high. Therefore, some welding equipment specially used for specific shapes or specific products has been developed, such as a single needle resistance welding device with application number CN202022015140.X and a motorcycle tank seam welding device with application number CN200520010660.4. However, these devices have the problems of high cost and lack of universality. SUMMARY

[0004] In order to provide a low-cost device for welding within a certain range of curved surfaces, the utility model provides a small resistance welding executing mechanism applicable to curved surface welding, which comprises a welding gun mounting plate, side plates hinged on both sides of the welding gun mounting plate, a roller assembly arranged at the bottom of each of the welding gun mounting plate and the side plate, the roller assembly comprising a mounting frame and a roller arranged thereon, a driving motor arranged at the bottom of the welding gun mounting plate, the driving motor driving the roller to rotate, an extension assembly A and an extension assembly B arranged at the upper and lower parts of the rear side of the welding gun mounting plate respectively, a welding gun fixing structure arranged at the top of the extension assembly A, a U-shaped frame fixed to the lower part of the extension assembly B, a guide wheel arranged at each end of the U-shaped frame, and an extension assembly C arranged at the bottom of the U-shaped frame, a welding gun fixing structure arranged at the bottom of the extension assembly C.

[0005] Preferably, the extension assembly A comprises a connecting column A, an elastic mechanism fixed to the top of the connecting column A, the top of the elastic mechanism fixed to the inside top of a sleeve A, the sleeve A sleeved on the outside of the connecting column A, the welding gun fixing structure comprises a fastener, the fastener provided with a screw hole penetrating through the top and bottom, the fastener provided with a semicircular groove penetrating through the front and back at the bottom, the semicircular groove and the semicircular groove at the top of the sleeve A combined into a through hole for the welding gun, and the welding gun fixed by screwing the fastener with bolts when installing the welding gun; the extension assembly C is arranged in a mirror image with the extension assembly A.

[0006] Preferably, the extension assembly B comprises two connecting columns B, an elastic mechanism fixed to the top of each connecting column B, the top of the elastic mechanism fixed to the inside top of a sleeve B, and the sleeve B sleeved on the outside of the connecting column B.

[0007] Preferably, the elastic mechanism is one of a metal spring, an air spring, and a polyurethane elastomer.

[0008] Preferably, the driving motor is a stepper motor or a servo motor, and the driving motor is controlled by an external control device.

[0009] Preferably, when the elastic mechanism is in a natural state, the guide wheel is tangent to the roller.

[0010] Preferably, the mounting frame bottom is provided with a permanent magnet.

[0011] In use, the welding gun is fixed on the welding gun fixing structure, the guide wheel and the roller are clamped on two sides of the curved surface through the elasticity of the telescopic mechanism B, and then the external control device controls the movement of the driving motor and controls the welding gun to "nod" on the telescopic welding gun fixing structure to perform spot welding, so that the welding of the arc line on the curved surface can be realized. The welding gun fixing structure has low cost, certain universality, and certain technical progress. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0013] Figure 1 It is a perspective view of the present application.

[0014] Figure 2 It is a rear view of the present application.

[0015] Figure 3 It is a side view of the present application.

[0016] Figure 4 It is a top view of the present application.

[0017] In the drawings: 1, welding gun mounting plate; 2, side plate; 3, mounting frame; 4, roller; 5, permanent magnet; 6, sleeve B; 7, connecting column B; 8, driving motor; 9, U-shaped frame; 10, guide wheel; 11, connecting column A; 12, sleeve A; 13, fastener; 14, through hole; 15, screw hole. DETAILED DESCRIPTION

[0018] In this application, each device (parts without specific structure) selected is a general standard part or a part known to those skilled in the art, and its structure and principle can be known to the skilled person through a technical manual or through a conventional experimental method.

[0019] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] In the description of the present application, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application. The devices or elements indicated or implied must have a specific orientation, a specific orientation and operation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed mutual ones can be through some communication interface, indirect coupling or communication connection between the devices or units, which can be electrical, mechanical or other forms.

[0022] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e. they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0023] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. Embodiment 1

[0024] As Figures 1-4As shown, the small resistance welding actuator suitable for curved surface welding has the structure comprising: a welding gun mounting plate 1, side plates 2 are hinged on both sides of the welding gun mounting plate 1, a roller 4 assembly is arranged on the bottom of the welding gun mounting plate 1 and the side plates 2, the roller 4 assembly comprises a mounting frame 3 and a roller 4 arranged on the mounting frame 3, a driving motor 8 is further arranged on the bottom of the welding gun mounting plate 1, and the driving motor 8 drives the roller 4 to rotate, an upper part and a lower part of the rear side of the welding gun mounting plate 1 are respectively provided with telescopic assemblies A and B, the top of the telescopic assembly A is provided with a welding gun fixing structure, the lower part of the telescopic assembly B is fixedly provided with a U-shaped frame 9, one guide wheel 10 is arranged at each end of the U-shaped frame 9, and a telescopic assembly C is further arranged on the bottom of the U-shaped frame, and the bottom of the telescopic assembly C is provided with a welding gun fixing structure.

[0025] More specifically, the telescopic assembly A comprises a connecting column A11, the top of the connecting column A11 is fixedly provided with an elastic mechanism, the top of the elastic mechanism is fixed to the inner top of a sleeve A12, the sleeve A12 is sleeved on the outer side of the connecting column A11, the welding gun fixing structure comprises a fastener 13, the fastener 13 is provided with a screw hole 15 penetrating through the upper and lower parts, the bottom of the fastener 13 is provided with a semicircular groove penetrating through the front and rear parts, the semicircular groove and a semicircular groove on the top of the sleeve A12 are combined into a through hole 14 for the welding gun to pass through, and when the welding gun is installed, the fastener 13 is screwed by a bolt to fix the welding gun.

[0026] More specifically, the telescopic assembly B comprises two connecting columns B7, the top of the connecting column B7 is fixedly provided with an elastic mechanism, and the top of the elastic mechanism is fixed to the inner top of a sleeve B6, and the sleeve B6 is sleeved on the outer side of the connecting column B7.

[0027] More specifically, the elastic mechanism in the example is a metal spring.

[0028] More specifically, the driving motor 8 is a stepping motor or a servo motor, and the driving motor 8 is controlled by an external control device and is controlled by the external control device to control the welding operation route.

[0029] More specifically, when the elastic mechanism is in a natural state, the guide wheel 10 is tangent to the roller 4, so that the two can clamp the curved surface to be welded without falling off.

[0030] More specifically, the bottom of the mounting frame 3 is provided with a permanent magnet 5, and the magnetic force of the permanent magnet 5 can be used to further stabilize the movement of the actuator on the curved surface during welding.

[0031] In use, the welding gun is fixed on the welding gun fixing structure, the guide wheel and the roller are clamped on the two sides of the curved surface through the elasticity of the telescopic assembly B, and then the driving motor is controlled to move and the welding gun is controlled to "nod" on the telescopic welding gun fixing structure to perform spot welding, so that the welding of the arc line on the curved surface can be realized, the utility model has low cost, certain universality and certain technical progress.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A small resistance welding power supply suitable for use in curved surface welding, comprising: a welding power supply; a welding head; a welding cable; and a welding torch, wherein the welding power supply, welding head, welding cable and welding torch are configured to be used in curved surface welding. The utility model relates to a welding gun mounting plate, welding gun mounting plate both sides articulate have side plate, welding gun mounting plate and side plate's bottom each is equipped with a gyro wheel subassembly, gyro wheel subassembly includes mounting frame and is equipped with gyro wheel on it, welding gun mounting plate bottom is equipped with drive motor still, drive motor drives gyro wheel rotation, welding gun mounting plate rear side's upper portion and lower portion are equipped with telescopic subassembly A, telescopic subassembly B respectively, telescopic subassembly A's top is equipped with welding gun fixed structure, telescopic subassembly B's lower part is fixed with U-shaped frame, U-shaped frame both ends each is equipped with a guide wheel, U-shaped frame bottom is equipped with telescopic subassembly C still, telescopic subassembly C's bottom is equipped with welding gun fixed structure. The telescopic subassembly A includes a connecting column A, the top of the connecting column A is fixed with an elastic mechanism, the top of the elastic mechanism is fixed with the inside top of a sleeve A, the sleeve A is sleeved on the outside of the connecting column A, the welding gun fixed structure includes a fastener, the fastener is provided with a screw hole penetrating through the top and bottom, the bottom of the fastener is provided with a semicircular groove penetrating through the front and back, the semicircular groove and the semicircular groove on the top of the sleeve A are combined into a through hole for the welding gun, and the welding gun is fixed by screwing the fastener with bolts when the welding gun is installed; the telescopic subassembly C is mirror image arranged with the telescopic subassembly A.

2. The small size resistance welding actuator for curved surface welding according to claim 1, characterized in that: The telescopic subassembly B includes two connecting columns B, the top of the connecting column B is fixed with an elastic mechanism, the top of the elastic mechanism is fixed with the inside top of a sleeve B, and the sleeve B is sleeved on the outside of the connecting column B.

3. The small size resistance welding actuator suitable for curved surface welding according to claim 2, characterized in that: The elastic mechanism is one of a metal spring, an air spring and a polyurethane elastomer.

4. The small size resistance welding actuator for curved surface welding according to claim 3, wherein: The drive motor is a stepping motor or a servo motor, and the drive motor is controlled by an external control device.

5. The small size resistance welding actuator suitable for curved surface welding according to claim 4, characterized in that: When the elastic mechanism is in a natural state, the guide wheel is tangent to the gyro wheel.

6. The small size resistance welding actuator suitable for curved surface welding according to claim 5, characterized in that: The bottom of the mounting frame is provided with a permanent magnet.

7. The small size resistance welding actuator adapted for curved surface welding according to claim 6, wherein: ​

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