| 摘要 |
<p>Apparatus for the machining of girders, particularly heavy steel girders for construction purposes, having portal-type machine frame with vertical frame parts and a horizontal upper crossbar, rolling feed bed, feed unit with feed measuring device, at least one boring apparatus with adjustable-depth boring tool, adjustable vertically on vertical frame parts, at least one additional boring apparatus with adjustable-depth boring tool, adjustable horizontally on the horizontal upper crossbar and a programmable control device. The boring apparatuses are carried on boring apparatus carriages and the boring apparatus carriages on carriage guides. The feed measuring device of the feed unit, placed in front of the boring apparatuses, is controlled by the programmable control device and the control device regulates the feed, the setting of the boring apparatus as well as the depth adjustment of the boring apparatus, using corresponding stepping motors or adjusting mechanisms. At least one of the boring apparatus carriages features a boom, rigidly attached to the boring apparatus carriage and which hangs in the direction of the feed. The boom holds an oxygen cutting apparatus with cutting torch. The additional feed unit is placed facing in the direction of the feed behind the boring apparatuses. This is driven synchronously with the feed unit that is placed in front of the boring apparatuses and is fitted with a further feed measuring device. The additional feed measuring device operates likewise under control of the programmable control device. This control device regulates in addition the setting of the oxygen cutting apparatus and the cutting torch.</p> |
