Roll grooving apparatus

Details Roll grooving apparatus Roll grooving apparatus

B - Operations, Transporting

21

D

B21D 17/04 (2006.01)

Patent

CA 2042805

ROLL GROOVING APPARATUS ABSTRACT OF THE INVENTION Roll grooving apparatus is pivotally mountable on the support rails of a power drive unit by which the apparatus is driven and comprises a lower support including a drive shaft driven by the power unit and including the lower grooving roll, and an upper support member pivotally inter- connected with the lower support member and rotatably sup- porting the upper grooving roll. A lever arm is pivotally mounted on the lower support member and is interengaged with the upper support member through a pin and slot arrangement, whereby pivotal displacement of the lever arm imparts pivot- al displacement to the upper support member and thus move- ment of the upper grooving roll toward and away from the lower grooving roll. The lower support includes a stop which limits displacement of the lever in the direction which moves the upper grooving roll toward the lower groov- ing roll, thus to assure a desired depth for the groove in a workpiece, and the pivotal interconnection between the upper and lower supports is adjustable to provide for adjusting the groove depth and accommodating different pipe or tube sizes and thicknesses. The adjustment enables using the stop on the lower support member as a constant In connection with pipe size and thickness variables and enables optimiz- ing the leverage advantage and the direction of application of force of the upper grooving roll relative to the lower grooving roll.

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