8 OUTPUT MODULE
8.4.4 Cam curve list
Table 8.6 Cam Curve Characteristics Comparison Table
Class
Discontinuity curves
Symmetrical
curves
Two-
dwelling
curve
Asymmetrical
curves
One-dwelling curve
Non-dwelling curve
This section describes the cam curves which can be used in the virtual mode.
(1) Cam curve characteristics comparison
The cam curve characteristics comparison is shown below.
Cam curve
Acceleration
name
curve shape
Constant -
speed
Constant-
acceleration
th
5
curve
Cycloid
Distorted
trapezoid
Distorted sine
Distorted
constant-
speed
Trapecloid
Reverse
trapecloid
Double
hypotenuse
Single
hypotenuse
(2) Free-form curve
The spline interpolation function can be used to create free-form cam curves.
Vm
Am
(A • V)m
1.00
2.00
± 4.00
± 8.00
1.88
± 5.77
± 6.69
2.00
± 6.28
± 8.16
2.00
± 4.89
± 8.09
1.76
± 5.53
± 5.46
1.28
± 8.01
± 5.73
2.18
± 6.17
± 10.84
2.18
± 6.17
± 10.84
+ 5.55
+ 7.75
2.04
- 9.87
- 9.89
1.57
± 4.93
± 3.88
8 - 41
(V • V)m
(S • V)m
Remark
1.00
1.00
4.00
1.09
3.52
1.19
4.00
1.26
4.00
1.20
Ta = 1 / 8
3.10
1.13
Ta = 1 / 8
Ta = 1 / 16
1.63
1.07
Ta = 1 / 4
4.76
1.28
m = 1
4.76
1.28
m = 1
4.16
1.39
2.47
1.02