Patent application number | Description | Published |
20090035074 | Integral cutting insert clamping mechanism - An integral insert clamping mechanism for transferring clamping forces away from the screw hole of the insert to relieve stress at the screw hole by way of protrusions located on the bottom surface of the clamp plate. The clamping mechanism functions by a clamp plate being seated within an indentation on the top surface of the insert and a screw inserted into screw holes of the clamp plate and the insert and then threadably engaged with a threaded bore of a milling cutter. The top surfaces of the screw, the insert and the clamp plate being substantially coplanar. In an alternative embodiment, the clamp plate having a chip breaker. | 02-05-2009 |
20090290944 | CARTRIDGE ASSEMBLY FOR CUTTING TOOL - A cutting tool, such as a slotting cutter, includes a support disc rotatable in a predetermined direction on a central axis. The support disc is of a generally cylindrical shape has a plurality of cartridge-receiving pockets. A cartridge assembly is capable of being mounted to the pocket and includes a cutting insert with at least one cutting edge secured to each cartridge assembly. The cartridge assembly includes a tapered, threaded hole for receiving a tapered, threaded screw. The threaded hole is off-center to divide the lower portion of the cartridge assembly into two portions having different thicknesses and flexibility. A slot extends from the threaded hole to a bottom face of the cartridge assembly. The cartridge assembly expands as the tapered, threaded screw is received in the tapered, threaded hole to secure the cartridge assembly in the pocket. | 11-26-2009 |
20100008735 | MILLING CUTTER WITH CAM PIN AND CUTTING INSERT THEREFOR - A milling cutter includes a shank having an insert pocket and a cam pin hole. The insert pocket includes a bottom surface, a radial seating surface and an axial seating surface. A cutting insert is mounted in the insert pocket. The cutting insert includes a blind hole extending from a bottom surface. A cam pin is rotatably mounted in the cam pin hole. One end of the cam pin includes a raised boss received in the blind hole of the cutting insert. A center axis of the raised boss is offset from a center axis of the cam pin such that rotation of the cam pin causes the raised boss to exert pressure against the blind hole of the cutting insert, thereby causing one of the side walls of the cutting insert to be forced against the radial seating surface of the insert pocket. | 01-14-2010 |
20120230781 | CUTTING TOOL INCLUDING A LOCKING SCREW AND ADAPTER WITH COOLANT DELIVERY - A cutting tool has a cutter body, which carries a cutting insert, and an adapter, which has a longitudinal adapter axis, wherein a locking screw attaches the cutter body to the adapter. A coolant volume is defined in a vicinity of a meeting of the cutter body, the adapter and the locking screw. The adapter contains an axial adapter bore. The locking screw contains a transverse locking screw bore in fluid communication with the axial adapter bore. The locking screw further contains a peripheral transverse locking screw bore passage in fluid communication with the coolant volume and the transverse locking screw bore. The coolant volume and the transverse locking screw bore are in fluid communication with the cutter body coolant passage. | 09-13-2012 |
20140212225 | COOLANT SPRAY NOZZLE AND CUTTER WITH COOLANT SPRAY NOZZLE - A coolant spray nozzle for use in conjunction with a cutter with a coolant duct wherein the cutter retains a cutting insert with a cutting edge that engages a workpiece at an insert-chip interface having a length. The coolant spray nozzle includes a coolant spray nozzle body containing a bore and an adjustable fan spray nipple having a slot with a slot opening through which coolant discharges in a fan-shaped coolant spray so as to impinge the insert-chip interface along substantially the entire length of the insert-chip interface. | 07-31-2014 |
Patent application number | Description | Published |
20110076106 | CUTTING TOOL WITH ERROR PROOFING FEATURE - A cutting tool includes a body having a forward end and a rearward end. The forward end includes an insert-receiving pocket with a threaded hole having a center axis. The cutting tool further includes a cutting insert with a countersunk bore with a center axis. The cutting tool includes an error proofing feature for preventing the cutting insert to be properly mounted in an insert-receiving pocket when an offset distance between the center axis of the threaded hole of the insert-receiving pocket and the center axis of the countersunk bore of the cutting insert is greater than a predetermined percentage of the outer diameter of the threaded screw. | 03-31-2011 |
20110229277 | CUTTING INSERT WITH INTERNAL COOLANT DELIVERY AND SURFACE FEATURE FOR ENHANCED COOLANT FLOW - A metalcutting insert that is useful in chipforming and material removal from a workpiece. The metalcutting insert includes a metalcutting insert body, which includes a cutting edge having at least one discrete cutting location. The metalcutting insert body further contains a distinct interior coolant passage communicating with the discrete cutting location. The distinct interior coolant passage has a coolant passage inlet defining a coolant passage inlet cross-sectional area, a coolant passage discharge defining a coolant passage discharge cross-sectional area, and an axial coolant passage length. The distinct interior coolant passage defines a coolant flow cross-sectional area along the axial coolant passage length thereof. The metalcutting insert further includes a plurality of surface features for enhancing coolant flow to the cutting edge. | 09-22-2011 |
20130033009 | HYDRAULIC COUPLING SYSTEM FOR COUPLING A SHELL MILL TO AN ADAPTER - A hydraulic coupling system includes an adapter, a shell mill, a threaded member, and a chucking membrane. The adapter includes a tapered pilot disposed on and extending from an end face. The shell mill includes a central counter bore for enabling the pilot of the adapter to be inserted therein. The threaded member includes at least one sealing member and is capable of being threaded into a threaded bore of the shell mill. The chucking membrane includes an intermediate portion disposed between two flanges and forms a fluid-tight channel for hydraulic fluid. The chucking member has a tapered inside surface. When the threaded member is threaded into the shell mill, the tapered surfaces of the pilot and the chucking membrane cause an axial force to seat the end face of the shell mill firmly against the end face of the adapter. | 02-07-2013 |
20140219734 | ROUND CUTTING INSERT WITH SERRATED TOPOGRAPHY - A cutting insert with a serrated topography includes a top surface terminating in a circular cutting edge, a bottom surface and a frusto-conical sidewall interconnecting the top surface and the bottom surface, and a plurality of serrations on the top surface uniformly disposed around the circular cutting edge and extending radially inward from the cutting edge in such a way that a bisector through each serration passes through a central axis of the cutting insert. The plurality of serrations are positioned in a cutting tool in such a way so as to reduce regenerative chatter during a cutting operation. A method of reducing generative chatter by positioning the cutting inserts in a particular fashion in a cutting tool is also disclosed. | 08-07-2014 |