RU1797541C - Machine for multispot resistance welding - Google Patents

Abstract

Usage: for multipoint welding of flat grids. SUMMARY OF THE INVENTION: The upper electrodes are mounted on the ends of the rocker arm pivotally mounted on the ends of the two-shouldered arm perpendicular to the last. The lever is pivotally coupled to an electrode compression drive. The electrodes are mounted movably along the beam. 2 ill.

Description

l / l3o6pefeHHe refers to the welding of flat screens in various welding machines.

An analogue is the method of manufacturing flat reinforcing cages (1). the essence of which consists in the simultaneous welding of two frames in parallel planes due to a rigid unregulated zeta-shaped electrode in plan.

The prototype adopted a device (2) consisting of upper and lower point electrodes, a drive for their compression and a two-armed lever with pivotally mounted upper electrodes at its ends. The disadvantage of the prototype is the underutilization of technological capabilities.

The purpose of the invention is to expand the technological capabilities of the prototype.

The essence of the invention lies in the fact that in the machine rocker arms for electrodes are mounted perpendicular to the two-arm lever, and the electrodes themselves are mounted for movement along the beam.

Figure 1 shows a resistance multipoint welding machine, general view; on the

fi g.2 - block drive welding in a perspective view.

- A machine 1 for resistance multipoint welding of flat grids 2, consisting of longitudinal 3 and transverse 4 wires, consists of a housing 5, lower movable electrodes 6, arranged in two rows, upper electrodes 7, fixed and pivoted to adjust the pitch of grids 2 on rotary arms 8, spring-loaded from excessive rotations by flat curved springs 9, connected by a swivel rotary and also spring-loaded beam 10, welding drive 11, etc., as well as a feed unit 12 and pieces of two transverse wires. The work of the machine.

The operation of the multi-spot welding machine 1 is carried out similarly to the well-known machines for welding flat grids 2, with the difference that instead of one, two transverse wires 4 are fed from the side, which expands the technological capabilities of the welding machines, and also due to the fact that due to the electrodes 7 mounted with the possibility of movement on the rocker arms 8,

(L

G

xj

Yu

ate

4

s

With the newly perpendicular to the two-arm lever 10, four points of intersection of the flat grids 2 are welded with one drive 11, which ultimately reduces the number of drives and increases the technological capabilities of the machine 1 for welding flat grids 2.

SUMMARY OF THE INVENTION A resistance spot welding machine comprising upper and corresponding lower spot electrodes, an electrode compression drive articulated to a two-arm lever, articulated at the ends of a rocker arm

with upper electrodes mounted at their ends, characterized in that, in order to expand technological capabilities, the arms are mounted perpendicular to the two-arm lever, and the electrodes are mounted for movement along the arms.