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US 5,325,748 AGranted
Profile cutting tool
AssigneeNeumo Grundbesitz-GmbH
InventorHarry Ehrenberg
Life of this patent
Estimating the term…
Abstract
A thread cutter has a set thread cutting tip for forming a pitch on a workpiece. The cutting projections that form the cutting edge are staggered by a few radians about the rotational axis of the cutter, so that they do not simultaneously come into cutting engagement with the workpiece surface and instead engages the surface in a predetermined sequence, leading to safe loading and improved machining accuracy.
Claims18
A profile cutting tool for cutting workpiece profiles, comprising:
- a cutting insert (6) including a plate body, said plate body having a plate section, said plate section having a substantially constant thickness, said plate body having plate surfaces including an edge face (31) and first and second side faces (22, 23) connected to said edge face (31), said first and second side faces being larger than said edge face, said edge face and at least one of said first and second side faces providing a cutting edge (11) at their junction, at least one of said first and second side faces providing a cutting breast face (12), said plate body defining a median plate plane (28) parallel and equidistant between said side faces (22, 23), said edge face (31) being oriented substantially at right angles to said median plate plane (28), said edge face providing a back face (13) adjacent said cutting edge (11), said cutting edge (11) defining a longitudinal edge extension (30), said cutting edge (11) and said edge face (31) providing cutting profiles (14, 15) including at least one profile projection (14) and at least one profile depression (15), said cutting profiles (14, 15) having a longitudinal profile extension, said longitudinal profile extension being transverse to said median plate plane (28), wherein said longitudinal profile extension is inclined with respect to said longitudinal edge extension (30).
A profile cutting tool (1) for cutting workpiece profiles, comprising:
- a cutting insert (6) provided by a plate body, said plate body having a plate section, said plate section having a substantially constant thickness extension, said plate body having plate surfaces including an edge face (31) and first and second side faces (22, 23) connecting to said edge face (31), said first and second side faces being larger than said edge face, said edge face and at least one of said first and second side faces providing a single cutting edge (11) at their junction and a cutting breast face (12), said plate body defining a median plate plane (28) between said side faces (22, 23), said edge face (31) being oriented substantially at right angles to said median plate plane (28), said edge face providing a back face (13) adjacent said cutting edge (11), said cutting edge (11) defining a longitudinal edge extension (30), said cutting edge (11) and said edge face (31) providing cutting profiles (14, 15) including at least one profile projection (14) and at least one profile depression (15), said cutting profiles (14, 15) having a longitudinal profile extension, said longitudinal profile extension being transverse to said median plate plane (28), wherein said longitudinal profile extension is inclined with respect to said longitudinal edge extension (30) by an angle of less than 30.degree..
Dependencies are inferred from the claim text.