- Pick and Place
- System
Introduction
One of our most frequently asked questions is, "How accurate is the PPR's force control?"
Applications using force control may include reducing damage to workpieces with contact stop or applying a specific amount of pressure to workpieces with force control.
This time, we examined the accuracy of the the PPR's force control in terms of how much variation there is when a repetitive load is applied by force control.
Required Conditions
Some supplementary information about the PPR's force control for this verification is outlined below.
The PPR automatically acquires the reference value for force control during contact stop operation. This is done for the purpose of avoiding disturbances such as sliding resistance, to detect contact with higher precision, or to perform a pressing motion. For this reason, the contact stop operation is incorporated immediately before the force control operation.
The speed of the contact stop operation is set at 1 mm/s as a typical setting value, which is also described in the catalog.
The measurement will be performed by an external load cell.
The PPR features a function called the force control correction value, which compensates for any discrepancies in comparison with an external load cell. Use of this function during verification is acceptable, as it allows a degree of precision to be maintained.
What do you think?
Although this is only for reference, we believe that we have been able to show you a glimpse of the PPR's force control capabilities. We hope that the PPR'S force control will prove useful in the pick and place operations and force control processes that you wish to achieve.