Structural steel beam assemblies for a machining device

A machining device with at least one structural steel beam assembly comprising:

• a base having a top, two rails mounted on the top and multiple slides mounted slidably on the rails;
• a saddle mounted slidably on the slides of the base, sliding longitudinally relative to the base and having a top, a bottom, two rails mounted on the top of the saddle, and multiple slides mounted slidably on the rails on the saddle;
• a table mounted slidably on the slides of the saddle sliding transversely relative to the base and having a bottom;
• a column mounted on the base and having a front, two rails mounted on the front of the column and multiple slides mounted slidably on the rails of the column;
• a neck mounted slidably on the slides of the column, sliding vertically relative to the table and having a rear end and a front end;
• a head attached to the front end of the neck;
• and
• a spindle mounted through the head;
• wherein
• at least one of the base, the saddle, the table, the column and the neck is a structural steel beam assembly having multiple structural steel beams, the structural steel beams are connected together to form a hollow structure.

A machining device with at least one structural steel beam assembly comprising:

• a base having a top, two rails mounted on the top, and multiple slides mounted slidably on the rails;
• a table mounted on the top of the base;
• a column having a top, a front, an overhang having a front and protruding from the front of the column at the top, a rail mounted on the overhang of the column, and multiple slides mounted slidably on the rail on the column;
• a Y-axis saddle mounted slidably on the slides on the base and the slides on the column, sliding transversely relative to the base and having a front, a vertical recess formed on the front of the Y-axis saddle, two rails mounted on the front of the Y-axis saddle, and multiple slides mounted slidably on the rails of the Y-axis saddle;
• a Z-axis saddle mounted in the vertical recess of the Y-axis saddle and slidably on the slides of the Y-axis saddle, sliding vertically relative to the base and having a front;
• a head mounted slidably through the front of the Z-axis saddle, sliding longitudinally relative to the base and has an open front;
• and
• a spindle mounted in the open front of the head;
• wherein at least one of the base, the column, the Y-axis saddle, the Z-axis saddle is a structural steel beam assembly having multiple structural steel beams, the structural steel beams are connected together to form a hollow structure.