US 12,011,752 B2
Battery pack powered roll groover
Timothy J. Radtke, New Berlin, WI (US); and Benjamin A. Sands, Jackson, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Oct. 19, 2021, as Appl. No. 17/505,266.
Claims priority of provisional application 63/235,507, filed on Aug. 20, 2021.
Claims priority of provisional application 63/093,577, filed on Oct. 19, 2020.
Prior Publication US 2022/0118498 A1, Apr. 21, 2022
Int. Cl. B21D 17/04 (2006.01)
CPC B21D 17/04 (2013.01) 18 Claims
OG exemplary drawing
 
1. A roll groover comprising:
a housing;
an inner roller provided on the housing and configured to be received in an inner circumference of a workpiece;
a groove roll provided on the housing and configured to produce a groove on the workpiece;
one or more motors provided within the housing and configured to drive the groove roll;
an electronic processor electrically connected to the one or more motors, the electronic processor configured to:
control the one or more motors to move the groove roll around the workpiece while measuring distance,
determine whether the groove roll has traveled a first predetermined distance around a circumference of the workpiece,
determine whether the groove roll is below a second predetermined distance of a final depth when the groove roll has traveled the first predetermined distance,
in response to the groove roll not being below the second predetermined distance of the final depth, control the one or more motors to increase groove depth by a predetermined increment; and
in response to the groove roll being below the second predetermined distance of the final depth:
control the one or more motors to increase groove depth by a fractional increment,
control the one or more motors to move the groove roll around the workpiece,
determine whether the groove roll is at an initial position, and
control the one or more motors to stop and indicate completion of operation when the groove roll is at the initial position.