Lathe cutting tool
AssigneeCerasiv GmbH Innovatives Keramik-Engineering
InventorsErich Grun, Rolf Muller
Life of this patent
Estimating the term…
Abstract
Disclosed is a lathe cutting tool assembly found of a tool holder which has a seat to accommondate a cutter insert, the cutter insert being provided with a clamping groove or bore. The insert is held in the tool holder by a clamping shoe. The clamping shoe is tightly secured to on the tool holder. To protect the clamping shoe and improve the seating of the cutter insert in the tool holder, a clamping plate is secured to the clamping shoe and lies upon the cutter insert. A projection is provided on the bottom of the clamping plate facing the cutter insert and is in clamping contact with the groove or bore. The tool assembly is especially adapted for a turning chisel.
Claims13
A lathe cutting tool assembly for machining a workpiece, said lathe cutting tool assembly comprising:
- a tool holder having an opening therein;
- a cutter insert positioned in said opening, the cutter insert having a clamping recess therein;
- a clamping shoe which secures the insert in the tool holder, the clamping shoe being secured to the tool holder by a screw;
- a clamping plate secured to the clamping shoe and in contact with the cutter insert;
- said clamping plate having a bottom facing the cutter insert and including a cam on said bottom which is in clamping contact with the cutter insert in said recess;
- said clamping shoe having a front portion engaging an upper surface of said clamping plate so as to draw said clamping plate in a backward direction toward said screw;
- and
- the clamping plate having an upper portion forwardly of the clamping shoe, said upper portion extending upwardly higher than the surface of the clamping plate that is beneath the clamping shoe and so that the clamping plate upper portion protects the front portion of the clamping shoe against impinging chips.
Dependencies are inferred from the claim text.