Floating chuck assembly for a rotary cutting machine

A floating chuck assembly used in connection with a workpiece support carrying a workpiece, the floating chuck assembly comprising:

• a chuck assembly;
• a linkage assembly adapted to support the chuck assembly, the linkage assembly including a mounting link attachable to the chuck assembly, a first link having a first end pivotally attached to a support about a first support axis and having a second end pivotally attached to the mounting link about a first mounting axis, a second link having a first end pivotally attached to the support about a second support axis and a second end pivotally attached to the mounting link about a second mounting axis;
• and,
• an extendable support having a first portion attached to the support and a second portion attached to one of the mounting link, first link, and second link, wherein the first portion moves relative to the second portion;
• and
• a cross link extending between the first link and the second link and pivotally attached to each of the first and second links, wherein the cross link defines a slot extending along the cross link, and wherein an adjustment assembly is carried on one of the first and second links and includes a locking member protruding outward from the link and slidably received within the slot, wherein the locking member is selectively fixed in the slot to adjust the relative length of the cross link.

A floating chuck assembly used in connection with a workpiece support carrying a workpiece, the floating chuck assembly comprising:

• a chuck assembly;
• a linkage assembly adapted to support the chuck assembly, the linkage assembly including a mounting link attachable to the chuck assembly, a first link having a first end pivotally attached to a support about a first support axis and having a second end pivotally attached to the mounting link about a first mounting axis, a second link having a first end pivotally attached to the support about a second support axis and a second end pivotally attached to the mounting link about a second mounting axis;
• and,
• an extendable support having a first portion attached to the support and a second portion attached to one of the mounting link, first link, and second link, wherein the first portion moves relative to the second portion, wherein the first end of the second link extends downward and outward relative to the second support axis, and the second end of the second link extends downward and inward from the second mounting axis.

A floating chuck assembly used in connection with a workpiece support carrying a workpiece, the floating chuck assembly comprising:

• a chuck assembly;
• a linkage assembly adapted to support the chuck assembly, the linkage assembly including a mounting link attachable to the chuck assembly, a first link having a first end pivotally attached to a support about a first support axis and having a second end pivotally attached to the mounting link about a first mounting axis, a second link having a first end pivotally attached to the support about a second support axis and a second end pivotally attached to the mounting link about a second mounting axis;
• and,
• an extendable support having a first portion attached to the support and a second portion attached to one of the mounting link, first link, and second link, wherein the first portion moves relative to the second portion;
• and
• a handle attached to the chuck assembly and extending laterally outward of the chuck assembly.

A floating chuck assembly comprising a mounting link configured to attach to a chuck assembly;

• a pair of first links and a pair of second links each of the links having a first end and a second end where the first pair of links are pivotable about a first support axis at a first end thereof and the first ends of the second links are pivotable about a second support axis, where the second ends of the first links are pivotably attached to the mounting link and pivot about a first mounting axis and the second ends of the second links are pivotably attached to the mounting link and pivotable about a second mounting axis;
• wherein the first links are laterally spaced from each other and the second links are laterally spaced from each other;
• and,
• an extendable support is attached to one of the mounting link, first links and second links.