(57) Abstract Objective Rim form of work of optional form automatic detectionOffering the work form detect automatically device which can do to do,It makes purpose. Constitution The work form detect automatically device which relates to this inventionThe detection tool, from the contact position which contacts work, thisAccording to the direction which crosses vis-a-vis the tangent of the work which is included 1stJust specified distance to make save, vis-a-vis this saving direction the specified timeIt is 2nd specified distance 90 degrees according to the cross direction which it turned in the riThe ke to make move, vis-a-vis this cross direction around aforementioned specified 90 degreesIt turned according to the approach direction which, contact with the work detectionAs it makes move to the re ru, this operation is iterated, controlIt does, contact position is detected every, the connection which is detected to the storage sectionThe contact which makes the tactile position store, is detected over the full circuit of workOn the basis of position, as rim form of work is detected, inspectionOut the contact section of the tool it is not in outline globose condition, diameter of this contact sectionIt designates that 2nd configurates more largely than specified distance as feature,The te it is.
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