RU155277U1 - Spot Welding Pliers - Google Patents

Abstract

Spot welding pliers, containing handles and consoles with electrodes, configured to connect to a power source and a switch, characterized in that the first and second electrodes are fixedly mounted on the first console and the plate with the third electrode is located on the second console, which can be rotated around the axis of the second console and occupy two positions that are fixed using the lock, while in one position the third electrode is located opposite the first electrode, and in the second position between the first and second m electrodes.

Description

The utility model relates to the field of welding technology and can be used for welding metal structures or for plastic deformation of metal.

A device for resistance spot welding (patent for the invention of the Russian Federation No. 2076030, IPC B23K 11/28), comprising a housing, guides, an upper electrode located at one end of the lever, a pivotally mounted handle, a rod with a power spring and a micro switch. The device is equipped with two sliders, which are placed on guides made in the form of two mutually perpendicular rulers, one of which is fixed to the body, and the other on one of the sliders with the possibility of reciprocating movement along the ruler, mounted on the body. In this case, the second slider is placed on the second ruler with the possibility of reciprocating movement along it and is rigidly connected to the other end of the lever of the upper electrode, which is pivotally connected to the handle made hollow. The rod is made with an external thread, equipped with an adjusting nut and rigidly connected at one end to the lever of the upper electrode, and the other end of the rod is equipped with a thrust shoulder and is placed in the holes made in the handle. The handle and the power spring are placed between the adjusting nut and the stop shoulder, the microswitch is located in the handle cavity with the possibility of interaction with the stop shoulder.

The disadvantage of this device is the limited functionality of the ticks. Ticks do not allow plastically deforming the metal.

Known tongs for resistance spot welding (patent for utility model of the Russian Federation No. 82153, IPC B23K 1/28, publ. 04/20/2009),

The pincers contain a pneumatic actuator, on the rod of which a movable electrode holder is mounted, a clamp housing mounted on the pneumatic actuator, on the outer surface of which a fixed electrode holder insulated from the clamp housing is mounted, electrodes placed on the electrode holders, and current leads to the electrode holders. The pneumatic actuator is made in the form of a pneumatic chamber, in the rod cavity of which there is a spring element, one end of which is rigidly attached to a washer mounted on the rod, and the other to the housing of the pneumatic chamber. The clamp housing is isolated from the stationary electrode holder using gaskets and bushings and is mounted coaxially to the pneumatic actuator rod, the electrodes are made in the form of cylinders and placed in the grooves of the electrode holders with the possibility of axial movement to adjust the position.

The disadvantage of this device is the limited functionality of the ticks. Ticks do not allow plastically deforming the metal.

Closest to the proposed device are tongs for spot welding (patent for utility model of the Russian Federation No. 123360, IPC B23K 11/11, publ. 12/27/2012), containing handles and consoles with electrodes, characterized in that they are equipped with a power source, an electromagnet , a limit switch and a switch with a processor integrated therein, which is electrically connected to a limit switch, and electrodes and a coil of an electromagnet consisting of a core and a plate of an electromagnet are electrically connected to the switch, wherein Steen electromagnet is fixedly connected with a single handle, and the core is rigidly connected to a lever which is connected to the other handle rotatably relative thereto by means of an adjusting screw, wherein the rotation axis of the lever coincides with the axis of rotation of the handles.

The disadvantage of this device is the limited functionality of the ticks. Ticks do not allow plastically deforming the metal.

The objective is to expand the functionality of spot welding mites by heating and increasing the ductility of the metal.

Spot welding pliers contain a power source with a switch, two consoles with electrodes. The first and second electrodes are fixedly mounted on the first console; on the second is a plate with a third electrode, which can be rotated around an axis associated with the second console. The plate has two positions that are locked with a latch. In the first position, the third electrode is located between the first and second electrodes, and in the second position, the third electrode is located opposite the second electrode.

The figure 1 shows the ticks - side view with local cuts.

The figure 2 shows the ticks - top view, the position of the plastic deformation.

The figure 3 shows the pliers - top view, position during welding.

The figure 1 shows the tongs for spot welding, which contain a power source 1 with a switch 2, handles 3 and 4, lower 5 and upper 6 console. On the lower console 5, electrodes 7 and 8 are installed. On the upper console 6, there is a plate 9 with an electrode 10. The plate 9 is rotatable around an axis 11 relative to the console 6 and takes two positions, which are fixed using the latch 12.

Pincers for spot welding work as follows.

In the mode of plastic deformation, the plate 9 rotates around the axis 11 relative to the upper console 6, while the electrode 10 on the plate 9 is located in the middle between the electrodes 7 and 8 on the lower console 5, and in this position the plate 9 is automatically fixed using the latch 12. Using the switch 2 the operator connects the clamp to the power source 1. Simultaneously pressing the handles 3 and 4, the operator compresses the processed metal parts 13 and 14. A passing electric current heats the processed parts to a temperature below temperatures resistance welding. In the heated state, the plasticity of the workpieces increases many times. By disconnecting the power source, the operator acts with pliers as pliers, easily plastically deforming the workpiece.

In the spot welding mode, the plate 9 rotates around the axis 11 relative to the upper console 6, while the electrode 10 on the plate 9 is opposite the electrode 8 on the lower console 5, and in this position the plate 9 is automatically fixed using the latch 12. Using the switch 2, the operator connects pincers to the power source 1. Simultaneously pressing the handles 3 and 4, the operator compresses the processed metal parts 13 and 14. The passing current heats the processed parts to the temperature of resistance welding. Details are welded.

The technical result of the utility model is an increase in the functionality of ticks. Pincers allow not only spot welding, but also plastic deformation of workpieces due to their heating by electric current.

Claims (1)

Spot welding pliers, containing handles and consoles with electrodes, configured to connect to a power source and a switch, characterized in that the first and second electrodes are fixedly mounted on the first console and the plate with the third electrode is located on the second console, which can be rotated around the axis of the second console and occupy two positions that are fixed using the lock, while in one position the third electrode is located opposite the first electrode, and in the second position between the first and second m electrodes.

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