Fanuc Corporation

Fujitsu Fanuc Limited

Hitoshi Matsuura

Etsuo Yamazaki

Eiji Matsumoto

Hiroshi Sakurai

Hitoshi Aramaki

Tetsuji Okamoto

Hajimu Kishi

Etuo Yamazaki

Osamu Nakajima

Osamu Tsukamoto

Ryoji Imazeki

Ryoichiro Nozawa

Hidetsugu Komiya

Mitsuo Matsui

Tomomi Nakazato

A machine having X- and Y-axis linear moving axes and a pivot axis B for rotationally pivoting a pivot member having a tool arranged at a distal end thereof about an axis parallel to a Z axis is controlled. A moving command obtained by a command program commanded by a position expressed by X, Y, and Z in a three-dimensional orthogonal coordinate system is subjected to an interpolation process to calculate amounts of interpolation movement (&#x394;X, &#x394;Y, and &#x394;Z) of the respective orthogonal axes. An amount of rotation &#x394;&#x3b8; of the pivot axis required for moving the tool by the amount of movement &#x394;Y in the Y-axis direction is calculated. An amount of correction movement &#x3b4;x for canceling the movement in the X-axis direction caused by the rotation &#x394;&#x3b8; of the pivot axis B is calculated. Values (&#x394;X+&#x3b4;x), &#x394;&#x3b8;, and &#x394;Z are outputted to the X axis, the pivot axis B, and the Z axis, respectively.

Numerical control apparatus

The present invention relates to a digitizing control apparatus for outputting smooth data along an original tracing path by correcting digitized data. Coordinate data of a digitized model surface is calculated by adding coordinate data commanding a tracing path on a model surface to the measuring displacements at trace measuring points of a sensor. Coordinate data of the respective trace measuring points is corrected to digitized data approximated by a new coordinate point on a tracing plane containing the tracing path. Corrected coordinate data is output as smooth digitizing data along the original trace path.

Digitizing control apparatus

A tracing control system for tracing a groove counter can easily measure the groove contour formed on a three-dimensional model surface. A tracer head is provided with a stylus having a size enabling the stylus to slide in a groove formed on the model surface in the state that the stylus receives a load from three axial directions. Amount of displacement sensing means senses the amount of displacement of the stylus. Displacement vector calculation means calculates the displacement vector of the stylus based on the sensed amount of displacement of the stylus. Movement control means controls the positional movement of the tracer head so that the displacement vector is equal to a predetermined vector value at all times. Position sensing means senses the present position of the tracer head. Data creation means creates digitized data based on the sensed present position of the tracer head and the amount of displacement of the stylus.

Tracing control system

Non-contact profile control method

Noncontact tracing control device

Non-contact digitizing control unit

Tracking control system

Tracer control unit

Non-contact digitizing method

Disclosed is a digitizing method of sensing an amount of displacement of each axis applied to a stylus by a tracer head, profiling a model surface while controlling the stylus in such a manner that the amount of displacement is made equal to a reference amount of displacement, sequentially fetching positional data by a predetermined method, and outputting NC data, wherein a difference between the amount of displacement and the reference amount of displacement is monitored, and the difference is added to the positional data and a specific positional data obtained when the difference exceeds a predetermined value is output. Although the amount of displacement of each axis is controlled to be equal to the reference amount of displacement when a gently inclined configuration is profiled, at the moment when a corner is reached, a phenomenon that the stylus is spaced apart from a model arises so that the difference between the amount of displacement and the reference amount of displacement is increased. This change is sensed and regarded to exhibit the corner, and thus the difference is added to the output point obtained by a usual digitizing and the positional data at a point is output.

Growing community of inventors

Hachioji, Japan

Hitoshi Matsuura