Hybrid holding device

A hybrid holding device used in a milling machine, comprising:

• a single piece body with a base having a mounting structure for detachably securing the hybrid holding device in a fixed stationary position directly onto a workbench of the milling machine;
• a drive mechanism;
• and
• a moveable multi-jaw assembly that includes at least three jaws that adjustably move n unison to a tightening or a releasing positions by the drive mechanism;
• the body has a length that extends along a longitudinal axis of the hybrid holding device, and a width that extends along a transverse axis of the hybrid holding device;
• the body of the hybrid holding device includes a top side and a bottom side;
• the body further includes a first section that includes an alignment groove on the top side, and accommodates a single piece, elongated cylindrical drive shaft of the drive mechanism near the bottom side;
• the alignment, groove extends linearly along a transverse axis of the hybrid holding device near a rear of the hybrid holding device;
• a first longitudinal bottom section of the hybrid holding device includes first and second drive shaft mounting openings with a cavity between the first and second drive shaft mounting openings;
• the first and second, drive shaft openings have axially aligned centers, with centers oriented parallel the longitudinal axis of the hybrid holding device;
• the cavity has a width parallel the longitudinal axis of the hybrid, holding device, defining a separation distance between first and second drive shaft mounting openings;
• the cavity has a length parallel the transverse axis of the hybrid holding, device, and a depth with a span longer than a first diameter and a second diameter of the respective first and second drive shaft mounting openings;
• first and second drive shaft mounting openings enable steady axial rotation of drive shaft without wobbling;
• the drive shaft is oriented parallel the longitudinal axis of the hybrid holding device and includes a polygonal drive end that extends out from the first drive shaft mounting opening, and receives a handle to rotate the drive shaft;
• the drive shaft further includes a pinion that engages cogs of a scroll plate, with the pinion extending out from the second drive shaft mounting opening;
• and further, the body further includes a second section that accommodates the multi-jaw assembly and drive mechanism;
• the bottom side of the second section of the body includes an offset surface forming an open-cavity that houses the scroll plate and accommodates the pinion of the drive shaft;
• the bottom side of the second section further includes an annular flange raised from the interior surface of the bottom side of the second section having a top side that has fastener opening to secure a cover plate;
• the bottom side of the second section further includes openings, forming open surface of open-cavity for allowing engagement of multi-jaw assembly with scroll plate from an exterior of the open-cavity.

A hybrid holding device used in a milling machine, comprising:

• a movable multi jaw assembly that includes at least three jaws that move in unison to a tightening or a releasing position;
• a drive mechanism that actuates the multi-jaw assembly;
• and
• a single piece body having a base with a mounting structure for detachably securing the hybrid holding device in a fixed stationary position directly onto a workbench of the milling machine;
• a first longitudinal bottom section of the hybrid holding device includes first and second drive shaft mounting openings with a cavity between the first and second drive shaft mounting openings;
• the first and second drive shaft openings have axially aligned centers, with centers oriented parallel the longitudinal axis of the hybrid holding device;
• the first and second drive shaft mounting openings enable steady axial rotation of a single piece, elongated cylindrical drive shaft without wobbling;
• the drive shaft includes a polygonal drive end that extends out from the first drive shaft mounting opening, and receives a handle to rotate the drive shaft;
• the drive shaft further includes a pinion that engages cogs of a scroll plate, with the pinion extending out from the second drive shaft mounting opening;
• the bottom side of the hybrid holding device, above the first drive shaft mounting opening are laterally adjacently positioned upper interlocking openings that extend perpendicular the first longitudinal bottom section and lead into the first drive shaft mounting opening;
• further included are lower interlocking openings that are axially aligned with upper interlocking opening;
• the upper and lower interlocking openings receive threaded shoulder bolts that engage a drive shaft interlock structure located near the drive end of the drive shaft within first drive shaft mounting opening;
• and further,
• the body has a length that extends along a longitudinal axis of the hybrid holding device, and a width that extends along a transverse axis of the hybrid holding device;
• the body of the hybrid holding device includes a top side and a bottom side;
• the body further includes a first section that includes an alignment move on top side, and accommodates a drive shaft of the drive mechanism;
• the body further includes a second section that accommodates the multi-jaw assembly and drive mechanism;
• the bottom side of the second section of the body includes an offset surface forming an open-cavity that houses the scroll plate and accommodates the pinion of the drive shaft;
• the bottom side of the second section further includes an annular flange raised from the interior surface of the bottom side of the second section having a top side that has fastener opening to secure a cover plate;
• the bottom side of the second section further includes openings, forming open surface of open-cavity for allowing engagement of multi-jaw assembly with scroll plate from an exterior of the open-cavity.