SU445543A1 - Resistance spot welding machine - Google Patents

Description

(54) CONTACT SHEET MACHINE

Red welding part containing stationary electrodes 13, mounted on beam 14, and lower movable electrodes with actuators 12, are installed sliding stops 15, intended for fixing blocks in the welding zone. To limit the movement of the blocks back, the unors 16 are installed, defining the place of loading of the grids (clamps).

When making the machine for welding frameworks with female clamps, blocks 5 are provided with clamps 17, and intermediate electrodes are made as one electrode 4 with protruding contact, shaped surfaces, the number of which corresponds to the number of prodrugs 18, all external electrodes 19 being movable. On bar 3, forks with longitudinal rods, forks with rollers 2O are mounted. The forks 21 can be sectional or solid.

The machine works as follows. In the initial position, the blocks 5 are in the leftmost position defined by the stops 16. At this point, the carriage 1 with the intermediate electrodes 4 is also in the leftmost position, in which the electrodes 4 are retracted beyond the blocks 5 so that the grids can be set clamps) in clamps 6, 7 or 17. First, lower longitudinal bars 18 are placed on the blocks, then grids 9 into clamps and already on the grids upper longitudinal bars. After that, a command is given from the control panel to move the outside of the carriage 1 (not shown in the drawing). From this moment on, the machine began to work in automatic mode. Intermediate electrodes 4 occupy a working position in the welding zone, giving a command to move the welding unit 1O to the welding zone 5, where it is fixed by stops 15 and presses the end driver 1, from which the drive is turned off - 1 O, and the actuators 12 move the lower ones upwards electrodes compressing interfacing with stationary electrodes 13, longitudinal rods 18 and intermediate electrodes 4 with grids 9. After this, the welding current is switched on and the grid 9 is welded to the longitudinal i rods 18 at the intersection points.

welding electrodes to the initial position, a command is given to the 1 O drive, which moves the first block 5 from the welding zone, while it doesn’t follow the second block by the hinge rods 8, and before

The stops 15 are pulled out. The second block of taclahs presses the limit switch off the 1O drive, and the next grid is welded to the longitudinal rods 18, and so on until the last grid is welded. After

5, the last block 5 is withdrawn from the weld zone, the actuator 10 is turned off and after i removing the skeleton of the block 5, it returns to i back to the stop 16.

- When making a car for welding

0 with clamps, the work process does not differ from the above, except that only after the clamps are installed into clamps 17, longitudinal rods 18 are inserted and compression is performed by all external

5 electrodes 19, It should be noted that with small distances between the grids (clamps) on the blocks 5 it is possible to install several clamps across the width of the block, having them taking into account the steps between the grids (clamps), as well as what can be manufactured frames with longitudinal rods of bays.

i

Subject invention

Machine d; w contact spot welding of volumetric reinforcement cages, containing a frame with guides, a movable carriage, a drive for feeding cages and electrodes, about tl and so that, in order to increase the productivity of the machine, it is equipped with blocks, non-side and rear, and between transverse rods and installed between the movable carriage and the axis of the electrodes with the ability to move along the guide / station, while the blocks are interconnected by adjustable rods, and the first block is connected along the movement of the frame drive feed frame.

with

2

eight

Fird

(rigging)