SU1590277A1 - Machine for multiple-spot welding of wide nets - Google Patents

Abstract

The invention relates to mechanical engineering and may find application in the construction industry. The purpose of the invention is to expand the functionality. The longitudinal reinforcement bars are laid out on the working roller tables between the upper and lower electrodes 6 and 13 or 7 and 14, depending on the required distance between the longitudinal bars. The combination of the upper and lower rows of electrodes 6 and 13 or 7 and 14 is carried out by a movement mechanism 26 mounted on the frame of the machine 1. This mechanism through the rod 28, at one end fixed to the intermediate carriage 24, moves the latter along the upper carriage 23. In this case, the traverse of two beams 4 and 5 attached to the bottom carriage 25 moves. After the axes of the electrodes are aligned, the welding current from transformers 2 to lower electrodes through terminal 3, adapter bus 11, connecting bus 10, upper electrode holders 15. After being forged, the pneumatic cylinders 17 are turned off. The yoke consisting of the beams 4 and 5 moves across the machine by the required pitch and the next group of longitudinal rods is welded. After the mesh is moved one step, the welding process is repeated. The machine makes it possible to manufacture a wide range of grids without changing equipment. 4 il.

Description

I The invention relates to machine building and may find application in the construction industry.

I The purpose of the invention is the expansion of § Functionality.

Ka Fig, 1 shows a machine, front view; in fig. 2 - the same, side view; in fig. 3 - section AA one; in fig. 4 is a connection diagram of 10: and welding transformers to the bottom electrodes and electrode holders. The machine contains a frame 1, welding transformers 2 with leads 3, made of two beams 4. And 5 under traverse, two Yes, the lower electrodes 6 and 7, the electrode holders and 9, the connecting bus 10, the transfer bus 11, an insulating gasket 12, two rows of upper electrodes 20

3 and 14, electrode holders 15 and 16, inevmo cylinders 17 with rods 18, pneumatic cylinders 19 with rods 20, prisms

M and 22, two upper carriages 23 "intermediate carriage 24, lower carriage- 25

su 25, movement mechanisms 26 and 27

: rods 28 and 29 and prism 30.

 The machine works as follows.

The longitudinal reinforcing bars of the SO are laid out on the working roller tables, gah (not shown) between the upper b electrode 6 and 13 or 7 and 14. The combination of the upper and lower rows of electrodes 6 and 13 is dried by the mechanism of displacement 26 installed on frame 1 of the machine, which, through the rod 28, is fixed at one end to the intermediate carriage 24, moves the latter along the upper carriage 23. In this case, the crosshead of two beams 4 and 5, which is fixed to the lower carriage 25, moves - giving birth 6 and 13 produced by mechanics By means of the rod 45 27 of the movement of the crosspiece from two beams 4 and 5, which through the rod 29, which is fixed at one end to the intermediate carriage 24, moves the lower carriage 25 relative to the last jQ. The movement mechanism 27 is fixed to the prism 30 mounted on the beam 5. The lower electrodes 6 are installed on the electrode holders 8, four pieces on each. After placing the transverse rod (not shown) between the upper and lower electrodes 6 and 13 on the previously unfolded step lengthwise

The rods turn on the cylinders 17, they are pressed. The welding current is supplied by alternately connecting the welding transformers 2 to the lower electroma 6 through pin 3, the transition bus It and the connecting bus 10 and is bridged by the upper electrodes 13 and the electrode holder 15. The transverse rod is welded to five pairs of longitudinal rods. After the forging, the pneumatic cylinders 17 are turned off. The traverse, consisting of beams 4 and 5, moves across the machine for the distance required to obtain the mesh with the required spacing between the longitudinal rods and the next group of longitudinal rods is welded to the same transverse bar. After all the longitudinal longitudinal rods have been welded, the grid is moved by a step required between the transverse rods. The mechanism for moving the mesh is not shown. Welding of the second and subsequent rods is similar to the first.

When using the second row of lower and upper electrodes 7 and 14, the alignment of the rows and axes of the electrodes with each other is carried out respectively by the mechanisms 26 and 27 of movement, as in the operation of the first row of electrodes 6 and 13.

Welding during operation of the second row of electrodes 7 and 14 is similar to the work of the first row of electrodes.

The use of the invention makes it possible to manufacture a wider range of nets on one machine due to the installation of electrodynamics more than. in one row, it makes it possible to install drives of shunt electrodes of any size regardless of the distance between, between rows of lower electrodes. delivery, allows you to lower the shunt electrodes according to the required program and create the necessary conditions for compression by each of the electrodes, which expands the functionality of the machine

Claims (1)

Invention Formula A machine for multi-spot welding of wide grids, containing a base frame, welding transformers with current-carrying electrodes installed on their secondary coils, and a traverse with shunt electrodes. mounted on the frame, and the mechanism of its transverse movement, the drive of the vertical movement of the shunt electrodes, characterized in that, in order to expand the functionality, the current-carrying and shunt electrodes are installed in at least two rows, the drive of the shunt electrodes are It is not in the form of independent power cylinders, each of which is fixed on the cross beam and connected to its own electrode, and the cross bar is provided with a drive for its longitudinal movement. 29 JO 27  2it h l o vl shchvll  25 7 V 10 12 2 2 2Б | c | j j jц1i j,. „ Y /// A Figg A a Fi. irnrTiizij WITH roguch pTVY. 0000 and 0 Phage. four 0000