Lenze Cam Designer Professional getting started - Handbuch (Seite 73)

Cam Designer Professional
L
71 Cam Designer Professional DE/EN 2.0
6.2 Normalised laws of motion
Each cam segment i describes a cam profile part defined by the value range s
i0
= f( ϕ
i0
) and s
i1
= f( ϕ
i1
).
• Internally, the functions are calculated using the normalised
value range 0...1.
• The coefficients of the cam profiles indicated in the
properties dialogs also refer to the normalised value range.
• The velocity and acceleration values in the properties
dialogs show the boundary values based on the actual
geometrical dimensions. Accordingly, the calculation is
based on the formula
v = ds / d
ϕ and a = d 2 s / d ϕ 2 .
The geometrical values for velocity and acceleration are
also used in the graphical representation.
7 Steps required for a new cam
The following steps are required to create a new cam profile:
• Selection of the worksheet settings
• Entry of technological requirements
• Join segments
• Adaptation of the acceleration (points)
• Generation of table interpolation
• Export of cam profile data
7.1 Selection of the worksheet settings
See chapter 5.1, “Worksheet settings”. ( ¶62)
1. Select File ➞ ➞ ➞ ➞ New to create a new project.
2. Select Edit ➞ ➞ ➞ ➞ Project Settings to open the Settings dialog box.
3. Go to the Settings dialog box, select the Range tab and define the value ranges for the master
and slave axis as well as the units for the axes.
The limit values should be set slightly higher to ensure that the objects are not directly set at
the edge of the working area.
4. Go to the Settings dialog box, select the Machine tab and define the type of master axis and its
speed in the operating point. Both settings are needed to calculate speed and acceleration for
the slave axis.
5. If the target system requires special connections, go to the Settings dialog box, click the
Connections tab and select the connection type required. In all other cases, the automatic
selection of connection type should not be changed.
6. Close the Settings dialog box with OK.
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