公开(公告)号：US20210033377A1

公开(公告)日：2021-02-04

申请号：US16934500

申请日：2020-07-21

Applicant: MITUTOYO CORPORATION

Inventor： Kazunari Ishii ,  Fumihiro Takemura

IPC: G01B5/008 ,  G01B5/20

Abstract: A profile measuring machine is for measuring a profile of a workpiece having a plurality of known-profile portions and a plurality of unknown-profile portions, the known-profile portions being cyclically arranged via the respective unknown-profile portions. The profile measuring machine includes: a scanning probe having a contact piece capable of being in contact with the workpiece; a drive mechanism for moving the scanning probe; an autonomous scanning measurement unit for controlling the drive mechanism to perform the autonomous scanning measurement; a measurement-path calculator for calculating a movement path of the scanning probe; and a nominal-value scanning measurement unit for controlling the drive mechanism to move the scanning probe along the movement path to perform a nominal-value scanning measurement. The measurement-path calculator calculates the movement path for the workpiece based on measurement results of the unknown-profile portions measured by the autonomous scanning measurement unit and design data of the known-profile portions.

公开(公告)号：US11221201B2

公开(公告)日：2022-01-11

申请号：US16934500

申请日：2020-07-21

Applicant: MITUTOYO CORPORATION

Inventor： Kazunari Ishii ,  Fumihiro Takemura

IPC: G01B5/008 ,  G01B5/20

Abstract: A profile measuring machine is for measuring a profile of a workpiece having a plurality of known-profile portions and a plurality of unknown-profile portions, the known-profile portions being cyclically arranged via the respective unknown-profile portions. The profile measuring machine includes: a scanning probe having a contact piece capable of being in contact with the workpiece; a drive mechanism for moving the scanning probe; an autonomous scanning measurement unit for controlling the drive mechanism to perform the autonomous scanning measurement; a measurement-path calculator for calculating a movement path of the scanning probe; and a nominal-value scanning measurement unit for controlling the drive mechanism to move the scanning probe along the movement path to perform a nominal-value scanning measurement. The measurement-path calculator calculates the movement path for the workpiece based on measurement results of the unknown-profile portions measured by the autonomous scanning measurement unit and design data of the known-profile portions.