Driving Torque Model and Accuracy Test of Multilink High-Speed Punch

Table 2

Comparison of the maximum torque with different speeds.

Crank rolling velocity/spm	300	400	500	600	700	800
The maximum torque of overcoming the inertia force/Nm.
Calculated value	375.1	664.9	1041.3	1496.9	2038.1	2662.7
Theoretical value	375.1	664.9	1041.3	1496.9	2038.1	2662.7
Error	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
Maximum torque of overcoming punching pressure/Nm.
Calculated value	3396.3	3195.9	2937.1	2621.9	2246.2	1949.9
Theoretical value	3396.2	3195.3	2934.4	2618.4	2241.4	1956.4
Error	0.0%	0.0%	0.1%	0.1%	0.2%	%