Sliding Headstock Automatic for Swiss and Production Turning, Index

The Traub TNL18 P production turning machine is capable of five-axis machining in a single setup.

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The Traub TNL18 P production turning machine is capable of five-axis machining in a single setup. The machine can be changed over in minutes to produce precision parts with or without a guide bush for long or short parts from bar to as much as 20-mm diameter. As many as three tools can be on the part at once.

The machine is useful for medical component machining as well as for aerospace parts. The tool capacity of the machine can be increased to as many as 54 tool places through dual- and multi-holders, extending productive times. The high-precision, fast turret indexing enables a chip-to-chip time of 0.3 second. Both variants make use of the Traub compact shaft system—an improved system for high-precision mounting of toolholders in the turret.

The lathe can quickly be changed over for use with and without a guide bush for long or short parts. The extremely long Z-travel distance of the headstock ensures the proper positioning of the main spindle, either for turning with a guide bush or without. In the standard design, the powerful main spindle is equipped with a C axis and provided with either a direct drive with high dynamic response or a belt drive (TNL18P) and high torque in order to achieve large cutting volumes.

Simultaneous machining with multiple tools ensures high productivity levels by both machines; up to three tools may be used simultaneously on two spindles. The TNL18P differs from the TNL18 variant in that the Y-axis motion of the upper turret is mapped by interpolation of the X/C/H axes, permitting contour milling and reliable off-center, axially parallel drilling.