Turning unit - MAXcomputer GmbH - www.max-computer.de

General information
A clever new development meets many wishes. The manufacturing of turned objects, polygons, forks, scale wheels, threads etc... is possible not only by new mechanical but also by software functions.

The hardware is extended by the 4th. axis (U-axis), existing CNC- machines must have a relating AxisController (U-Axis).

The software is integrated since nc4/nccad4 to be comfortably used, it is being developed and supplemented steadily.

To the shop ...

There are three versions of the turning unit:

The conception of the turning unit can be seen in the above pictures. It is qickly explained: the engine has a stepping motor as moving element and is fixed at the Y-table and connected to the extended interface. By the help of the software the rotating shaft is either turned steadily or brought into a certain position in which surface working is done, similar to milling.

• The speed can be controlled variably without steps by the software
  

• It is possible to use it as dividing head
  

• The turning direction can be controlled by software  
  

2 machining methods are possible:

• If the object turns continuously, rotation bodies will be fabricated.
  

• If the object is fixed in a certain angle position you can work on any of its surfaces on the X-, Y- or Z-level.
  

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Notes:
All mechanical parts are made in high precision. We use high quality ball bearings for the rotation axles, the mounting plate for the tailstock is made of ground steel.
The ground surfaces and fits allow the parts to be precisely joined and mounted to the Y-table.
The turning unit helps our coordinatetable KOSY to open up to new applications and perspectives. Our application laboratory and our production team is engaged in its use. Our experience are passed on in tipps for practice. We are really enthousiastic about KOSY as lathe, and hope you feel the same way.

Functions for the turning unit are part of the functions of nccad. It is our philosophy, not only to provide hardware but also an easy-to handle software.

For direct control NC-commands must be available to allow the manual operation of speed, turning direction and angle position. The turning unit is, so to speak, a 4th axle, it was given the name U-axis. The stepping motor for the U-Axis makes e.g. 400 steps per rotation, its transmission ratio toward the turning axle is 1:3. That means that 1200 steps of the stepping motor are necessary for one rotation of the rotation axle and that one step makes the angle change for 0,3°.

Example: If you want to go to an angle position of 30°, you have to:

• Go to the zeropoint [Pos1]
  

• Enter the direct command U100 (You understand: 100 x 0,3° = 30°). The zeropoint corresponds to the angle position 0, there is a sensor.
  

The following NC-commands were newly created, they can be entered either as direct commands or integrated in a NC-program:
M02 Turning OFF
M03 Snn Turning to right, S = speed
M04 Snn Turning left, S = speed

Speed nn can be set from 1 to 400 (approx. 1 to 400 rpm).

The U-axis can be integrated into the G-commands, e.g.:
G01 X10 Y20 Z-2 U600 F100

nccad  has been extended, especially for drawing a turning piece.

• This makes constructing easy,
  

• allows machining "turn round" and "mill surface",
  

• saves calculating by originating from a workpiece zeropoint,
  

• makes it unnecessary to convert radius into diameter
  

• helps to get a clear structure.
  

See below a series of pictures how CAD/CAM supports turning:

The technical for printing