Nippon Steel Sumitomo Metal Corporation

Carl Mahr Holding Gmbh

Yasuhisa Kasa

Mutsumi Tanida

Takashi Matsuura

Tatsuro Honda

Seiji Hiraoka

Konrad Friedrich

Erhard Gruener

Hiroki Kusuda

Tadayoshi Fujisaka

Hisao Yamasaki

A first thread feature is measured by detecting with an optical sensorlight that reaches from a light sourcelocated on the opposite side of a pipe axis and runs substantially in parallel to thread grooves A. A contact probeof a contact sensoris contacted with a thread flank surface Ato detect the space coordinates of the contact probeat the time of contact, so that a second thread feature is measured. The first and second thread features thus detected are combined with each other by a processor, and thread features of the thread provided as a measurement object are thereby calculated.

Apparatus, system, and method for measuring thread features on pipe or tube end

A dimension measuring devicein accordance with the present invention includes an end face following mechanismthat butts against an end face E of a long material, a dimension measuring mechanismfor measuring the dimensions of the long material, and a pushingly moving mechanismfor pushingly moving the end face following mechanism toward the end face of the long material. The end face following mechanism includes a plurality of contact sensors for detecting a contact state, and is turnable around two axes intersecting at right angles with each other. The pushingly moving mechanism pushingly moves the end face following mechanism into the state in which the plurality of contact sensors detect that the end face following mechanism butts against the end face of the long material. The dimension measuring mechanism is pushingly moved integrally and is turnable integrally with the end face following mechanism, and measures the dimensions of the long material when it is detected, by the plurality of contact sensors, that the end face following mechanism butts against the end face of the long material.

Dimension measuring device for long material

Growing community of inventors

Osaka, Japan

Yasuhisa Kasa