Process

The calibration sphere is measured a total of three times within the cycle. The measurement movements of the sphere measurement are oriented towards the measurement cycle for sphere measurement, whereby the measurement movements co-rotate with the measured axis.

Between measurements, the user initiates the approach of the starting position for the next measurement. The Pre-positioning section goes into greater detail on what the user must pay special attention to. The pre-position can be approached manually, in manual mode or also using an NC subroutine.

Before the start of the cycle, the touch head probe must be positioned vertically and as centrally as possible above the calibration sphere. If the touch probe head cannot be positioned vertically before the first measurement, an additional adaptation must be made in the input parameters (for more details, see the section Compensation for an inclined position).

Notice

notice

The measurement movements are co-rotated with the measured axis. In order to obtain a reliable estimate of the resulting measurement movement in advance, it is recommended to rotate the measured axis only by a small angle in a first pass. Of course, another possible alternative is run a preliminary simulation of the cycle.

The process can be described as follows:

Starting position before the cycle is called: The touch probe must be positioned either manually or in automatic mode as centrally as possible and at a short distance above the first sphere. It stands vertically, i.e. the touch probe rotation stands at 0. If this is not possible, a compensation must be executed using input parameters.

After the cycle is called:

  1. The touch probe first runs a measurement vertically to its orientation and a total of four lateral measurements, after which it returns to the starting position.
  2. The calibration sphere or the touch probe is pre-positioned again. Depending on the input parameters, this is done manually, in manual mode or with NC subroutines. The measured rotary axis must be rotated by the largest possible angle and the touch probe must be repositioned.
  3. Repeated measurement of the sphere.
  4. The calibration sphere or the touch probe is pre-positioned again.
  5. Repeated measurement of the sphere
  6. The touch probe travels to the starting point of the third measurement.

The general cycle process with subroutine calls takes place as follows.

SysMeasRotAxPre.nc      (optional)

SysCalibConfigTouchprobe.nc

SysMeasRotAxPrePos2.nc  (optional)

SysMeasRotAxPrePos3.nc  (optional)

SysMeasRotAxPost.nc     (optional)