SU31520A1 - Electric Wire Welding Pliers - Google Patents

Description

Pliers for welding wires consist of fixed and movable pads, used to receive the ends of the wires to be welded and provided with handles. Each of the pads consists of fixed and movable jaws, which serve to contain and clamp the wires to be welded. The welding current circuit is supplied by two flexible cables of a large cross section to the movable and fixed jaws, and the clamps are turned on by means of a push-button switch fixed on the handle, to which a flexible cable of small section connected to one of the cables supplying the pads. The disadvantage of existing pliers structures is the unreliability of fixing the ends of the wires to be welded in the pads, the movable element of which is deprived of the necessary direction and the inconvenience of positioning the push-button switch and cables leading to the handle and the switch on the movable handle of the pliers, which prevent the welder from producing wire welding.

The proposed invention aims to eliminate the above disadvantages .I

In FIG. 1 and 2 represent | general view of ticks and figs. 3 is a section I of one of the movable clamping jaws along the line AB in FIG. 2 ..

In the welder's knapsack a transformer is placed, from which there are thick flexible cables J and 2 and thin flexible cable 3; the latter is connected to a pushbutton switch 4 provided with a button 5. A cable 3 is connected to the cable / longer; pushbutton switch 4 mounted on a fixed handle 16 ticks. The end of one of the wires to be welded is laid into the notch 6 or 7 (depending on the wire thickness) of the fixed block / 7, and the end of the other wire into the corresponding notch beat 7 of the movable block 78 of the pliers. The notches 6, 7 are made on the inner edges of the trapezoidal recess of the stationary jaws of the pads / 7, 78, which serve to accommodate the movable jaws 8.9, for which the springs 70 are used, which are fixed at the base of the trapezoidal recess of the stationary jaws of the pads. In order to give direction to the movement of the jaws 8, 9, the latter are provided with oval holes serving to pass the screws 7 / and having flat sides on both sides, whereby the middle part of the screw // (Fig. 3) has free movement along the length of the bolt.

Welding is performed as follows. The welder holds the tongs by the fixed handle 16 and rotates the handle 75, wherein the block 18 with the wire clamped by 8 is moved along the Guide 13 and 14 until connected to another wire clamped in the fixed block 4, then the welding circuit is started using a push-button switch 4.

The subject matter of the invention.

Pliers for electric welding of wires with parallel-moving clamping jaws, characterized by

that, as the recess in the sliding sponge, which serves to accommodate the movable sponge and the wires to be welded, the moving sponge that is inserted into this recess in order to clamp the wires have a transverse plane perpendicular to the edges of the recess that are grooved during the laying of the wires , trapezoidal section in order to securely clamp the wires between the beveled side faces of the recess and the movable jaw.

FIG.