Forming cutter for machining special structure of automobile part

By designing guide bars on the cutting tool to abut against the inner wall of the stepped hole in the workpiece, the problems of tool runout and vibration when machining deep cavity structures of automotive parts are solved, achieving stable machining and high-precision forming of stepped holes.

CN224273338UActive Publication Date: 2026-05-26WUXI JINTUO AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI JINTUO AUTO PARTS CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-26

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    Figure CN224273338U_ABST
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Abstract

The utility model discloses a forming cutter for processing a special structure of an automobile part, which comprises a cutter handle and a cutter body, the cutter body is cylindrical, the cutter handle is coaxially arranged at the center of the cutter body, the cutter body is provided with a cutting edge, the outer side of the cutting edge is provided with a cutter groove, the cutter groove is provided with a guide strip and a cutting edge, the cutting edge and the guide strip both extend out of the cutter groove, and the cutter body is provided with a plurality of grooves. The length of the cutting edge extending out of the cutter groove is consistent with that of the guide strip extending out of the cutter groove, and one end of the guide strip extending out of the cutter groove abuts against the inner wall of a stepped hole of a workpiece; according to the forming cutter for machining the special structure of the automobile part, the guide strip is adopted to enable the cutting edge to abut against a workpiece all the time, the cutter body is effectively limited, deflection motion is prevented when the cutter body moves up and down, the cutting edge is prevented from scratching the inner wall of a cavity of the workpiece, and vibration caused by sudden stress when the cutting edge is used for machining a next step hole is avoided; stepped hole machining size stability is guaranteed, and stepped hole machining precision is improved.
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