Thermal cutting machine

Details Thermal cutting machine Thermal cutting machine

1993-03-09

1994-08-16

Albritton, C. L.

Electric heating

Metal heating

By arc

21912182, B23K 2600

Patent

active

053389140

ABSTRACT:
A thermal cutting machine, capable of providing a high cutting quality and of avoiding any interference between a cut product and the machining nozzle, comprises a workpiece table (4) for supporting a workpiece (5) to be cut, the workpiece table (4) being capable of moving the workpiece in the X-axis direction, and a machining nozzle (2a) for emitting a heat source to cut the workpiece, said machining nozzle (2a) being movable in the Y-axis direction. The workpiece table (4) is provided with a chain conveyer (6) having a plurality of grid elements (11) laterally spanning the chains (10) of the conveyer (6). A retracting means is provided for retracting downwardly at least one grid element (11) which is in the conveyor position corresponding to the cutting path for the machining nozzle, by depressing the portion of the chains (10) which support that grid element. This avoids damage to the grid elements during the cutting operation, and also avoids interference between the machining nozzle and the workpiece or the cut products. The cut workpieces can be classified into products and scraps.

REFERENCES:
patent: 3612814 (1971-10-01), Houldcroft
patent: 3711010 (1973-01-01), McConnell
patent: 3828159 (1974-08-01), Zoot
patent: 3889095 (1975-06-01), Egan
patent: 5128512 (1992-07-01), Seki
patent: 5272311 (1993-12-01), Gilli et al.

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