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US 6,231,276 B1Granted
Cutting tool with an insertable adjustable stop, and an adjustable stop for a cutting tool
AssigneeKennametal Hertel AG Werkzeuge + Hartstoffe
InventorsGebhard Müller, Horst Jäger, Martin Voll
Life of this patent
Estimating the term…
Abstract
In addition to having a stop member in the form of a hollow cylinder which is slotted and can be spread by means of an adjustment screw, an adjustable stop for a cutter adjustably arranged in a main casting or body of a tool is also provided with a sleeve member which can be inserted into a longitudinal bore of the stop member. The sleeve member has inside threads which can be brought into engagement with the adjustment screw. This results in an improvement of the load carrying capacity of the threaded connection. Since the sleeve member can move in the adjustment direction, the bending load on the adjustment screw is reduced.
Claims18
A method for forming metal with a milling cutter, said milling cutter comprising:
- a cutting device being configured to shape a metal piece;
- a holder;
- an adjustable stop member;
- said stop member being configured and disposed to be mounted in said holder;
- said stop member being substantially tube-shaped;
- said stop member comprising at least one longitudinal slot;
- said at least one longitudinal slot being disposed to permit displacement of a portion of said stop member;
- an adjustment screw;
- said adjustment screw being configured to be inserted into said stop member to spread said portion of said stop member;
- said cutting device being configured and disposed to be operatively in contact with said portion of said adjustable stop member to permit displacement of said cutting device upon displacement of said portion of said adjustable stop member;
- a sleeve member;
- said sleeve member being configured to be inserted into said stop member;
- said sleeve member comprising an inside threaded portion;
- and said adjustment screw being configured to be engaged with said inside threaded portion of said sleeve member;
- said method comprising the steps of:
- determining a desired depth of cut for a metal piece to be formed;
- positioning said cutting device in said holder at a desired distance to permit the desired depth of cut;
- said step of positioning said cutting device comprising adjusting said adjustable stop member, which adjustable stop member is operatively in contact with said cutting device;
- said step of adjusting said adjustable stop member comprising:
- screwing said adjustment screw into said adjustable stop member;
- spreading said portion of said adjustable stop member by insertion of said adjustment screw into said adjustable stop member;
- moving said cutting device by spreading said portion of said adjustable stop member;
- and
- continuing screwing said adjustment screw into said adjustable stop member until the desired distance relating to the desired depth to be cut is achieved;
- rotating said cutting device in said milling cutter;
- engaging a metal piece to be formed with said cutting device in said milling cutter;
- forming said metal piece;
- and
- disengaging said cutting device and said milling cutter from said metal piece upon completing forming of said metal piece.
26 more elements
A milling cutter for forming metal, said milling cutter comprising:
- a cutting device being configured to shape a metal piece;
- a holder;
- an adjustable stop member;
- said stop member being configured and disposed to be mounted in said holder;
- said stop member being substantially tube-shaped;
- said stop member comprising at least one longitudinal slot;
- said at least one longitudinal slot being disposed to permit displacement of a portion of said stop member;
- an adjustment screw;
- said adjustment screw being configured to be inserted into said stop member to cause displacement of said portion of said stop member;
- said cutting device being configured and disposed to be operatively in contact with said portion of said adjustable stop member to permit displacement of said cutting device upon displacement of said portion of said adjustable stop member;
- a sleeve member;
- said sleeve member being configured to be inserted into said stop member;
- said sleeve member comprising a threaded portion;
- and
- said adjustment screw being configured to be engaged with said threaded portion of said sleeve member.
12 more elements
In a cutting arrangement for forming metal, an adjustable stop comprising:
- a stop member;
- said stop member being configured to be mounted in a tool holder;
- said stop member being substantially cylindrical;
- said stop member comprising at least one longitudinal slot;
- said at least one longitudinal slot being disposed to permit spreading of at least a portion of said stop member;
- an adjustment screw;
- said adjustment screw being configured to be inserted into said stop member to cause spreading of said at least a portion of said stop member;
- a sleeve member;
- said sleeve member being configured to be inserted into said stop member;
- said sleeve member comprising a threaded portion;
- and
- said adjustment screw being configured to be engaged with said threaded portion of said sleeve member.
9 more elements
Dependencies are inferred from the claim text.