Ngk Insulators, Inc.

Nkg Insulators, Ltd.

Akira Yoshikawa

Tsunezo Takeuchi

Setsuo Torikai

Akira Nishio

An automatic chamfering machine for ceramic honeycomb structural bodies and the like workpieces is disclosed, and includes a clamping device by which a workpiece is clamped and caused to rotate in one direction. The movement of a grinder wheel with respect to the workpiece is controlled by a tracer element urged against the other peripheral surface of the workpiece itself, so as to carry out an autoprofiling chamfering operation. The grinder wheel thus removes a constant amount of material from the workpiece even when the workpiece has an irregular outer contour, or is clamped inaccurately.

Automatic chamfering machine

There is disclosed a clamp device for clamping a workpiece, e.g. a ceramic shaped body having a surface curvature. Support members are mounted on the base frame to support the workpiece thereon, and are adapted to swing about predetermined rotational axes. First clamp members are mounted on a base frame and adapted to swing about predetermined rotational axes. Second clamp members are mounted on a sub-frame, which is movable relative to the base frame, and are adapted to swing about predetermined rotational axes. The second clamp members can be moved toward the first clamp members to clamp a workpiece therebetween.

Clamp device for shaped bodies

A transferring and loading device for honeycomb structures including a movable hollow arm having a suction duct communicating with suction means, a perforated plate secured to an end of the movable hollow arm, and movable arm driving means for rotating said movable arm. The honeycomb structure clings thereto by sucking atmospheric air into the suction duct through passages of the honeycomb structure and the perforated plate and attracting the honeycomb structure to the perforated plate by means of the suction means having exhaust capacity larger than the suction of atmospheric air. In this manner, the device can rapidly handle the honeycomb structures without applying any undue force to the honeycomb structures and at the same time can remove the dust and ground chips produced in previous grinding process without using any dust collector.

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Nagoya, Japan

Akira Yoshikawa