US 5,662,514 AGranted

Method for producing cutting blades

AssigneeDana Corporation

InventorsJohn Edward Masseth, Joseph Henry Bradfield

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Abstract

A method for producing a cutting blade comprising the steps of obtaining a cutter head having a plurality of blade-receiving slots formed in a face thereof, positioning the cutter head in coordinate measuring machine, and inspecting a selected one of the slots using the coordinate measuring machine. Data obtained during the inspecting step is recorded on a recording medium transmitted to a computer of a numerical control grinding machine. A cutting blade blank is positioned in and ground by the computer numerical control grinding machine. The grinding step comprises the steps of generating selected finished surfaces of the cutting blade from the cutting blade blank and compensating for dimensional variations of the inspection data of the selected slot relative to dimensional design requirements of the selected slot. A plurality of the blades produced in this manner may be assembled in a cutter head so as to produce a trued face hobbing cutter head which in turn may be utilized in conjunction with a gear cutting machine to make a spiral bevel, zerol, or hypoid gear.

Claims14

Dependent claims

A method for producing a cutting blade, comprising the steps of:

(a) obtaining a cutter head having a plurality of blade-receiving slots formed in a face thereof;
(b) positioning said cutter head in a coordinate measuring machine;
(c) inspecting a selected one of said slots using said coordinate measuring machine;
(d) recording inspection data obtained during said inspecting step and an identifying indicium of said cutter head on a recording medium;
(e) transmitting said inspection data and said identifying indicium of said cutter head from said recording medium to a computer numerical control grinding machine;
(f) positioning a cutting blade blank in said computer numerical control grinding machine;
and
(g) grinding said cutting blade blank, wherein said grinding step comprises the steps of:
(i) generating selected finished surfaces of said cutting blade from said cutting blade blank;
and
(ii) selectively removing a calculated amount of material from at least one of a toprem relief surface, a cutting relief surface and a shoulder relief surface of said cutting blade blank to compensate for at least one dimensional variation of said inspection data of said selected one of said slots relative to dimensional design requirements of said selected one of said slots.

8 more elements

Dependencies are inferred from the claim text.