A machine tool control system according to the present invention includes: a three-dimensional coordinate computing unit which calculates three-dimensional coordinates of a workpiece based on a plurality of images of the workpiece, the images being taken by the imaging apparatus from a plurality of different directions, and which calculates, from the three-dimensional coordinates, three-dimensional coordinates of a specified machining start point on the workpiece; and a coordinate converting unit which converts three-dimensional coordinates that includes the machining start point on the workpiece calculated by the three-dimensional coordinate computing unit into coordinates in the machine coordinate system for the machine tool, and which sets the converted three-dimensional coordinates of the machining start point on the workpiece, as a workpiece origin, into the machining program for the machine tool.

Method of measuring at least one dimension (L) of an object (1) having a first axis (2), the method including the use of a first optical system (11) including an optical sensor (111) and having a second optical axis (113), the measuring method including (i) obtaining at least one series of data from the optical sensor when the object is in movement relative to the first optical system, notably an angular movement of the first axis relative to the second axis and/or a movement of the object in rotation about the first axis and/or a movement of the object in translation along the second axis and (ii) processing the at least one series of data to quantify said at least one dimension.

A machining device is provided with multiple translational and/or rotary machine axes for laser processing, grinding or electrical discharge machining of a workpiece into a tool. The machining device includes a machining unit comprising either a laser system with an optical system for generating, directing and/or moving a laser beam along an optical axis, a grinding tool rotatable around a tool axis, or an electrode tool for generating electrical discharge. The machining device also includes a workpiece support on which the workpiece is attached. The workpiece support is arranged movable about a second rotary machine axis, which is movable relative to a first rotary machine axis, perpendicular to the second rotary machine axis. A measuring system is positioned in a center of the first rotary machine axis and orientated towards a machine zero point defined by an intersection of the first rotary machine axis and the second rotary machine axis. The measurement system is configured to perform measurements along a first measurement axis and/or a second measurement axis to determine measurement data. A control unit is configured to control the machining unit and/or the measuring system.

A measurement device includes: a sensor that acquires image information by imaging an object targeted for addition of materials or cutting; a measurement unit that acquires measurement data by measuring the shape of the object on the basis of the image information, the measurement data representing a shape of the object; a missing region detecting unit that detects a missing region of the object; a measurement data complementing unit that acquires re-measurement data by re-measuring the shape of the object on the basis of the image information which the sensor has acquired by re-imaging, and complements the measurement data with the re-measurement data; and a machining region specifying unit that specifies a machining region for the addition or the cutting, on the basis of the complemented measurement data and a model of a finished product obtained by the addition or the cutting.

This groove shape measurement method has a coordinate data acquisition step of acquiring a plurality of pieces of three-dimensional coordinate data (three-dimensional coordinate data set (60)) indicating a shape of a machined groove (9) formed in a machining target object (workpiece (W)) in a machining feed direction (X direction) by a machining device (dicing device (10)) (Step S1), a projection data generation step of generating two-dimensional projection data (62) of the machined groove (9) by projecting the three-dimensional coordinate data onto a two-dimensional plane (two-dimensional plane (61)) perpendicular to the machining feed direction (Step S2), and a cross-sectional profile calculation step of calculating a cross-sectional profile (64) of the machined groove (9) on the basis of the two-dimensional projection data (62) (Step S3).

A distance measurement device includes: a signal acquisition unit to acquire an electric signal based on interference light from an optical sensor device that splits sweep light having a periodically changing frequency into reference light and irradiation light to be emitted toward an object to be measured, irradiates the object with the irradiation light, generates interference light by causing the reference light to interfere with reflected light that is the irradiation light reflected by the object, and generates the electric signal based on the generated interference light; a frequency calculation unit to calculate, on the basis of the electric signal based on the interference light, a peak frequency of the electric signal using LASSO regression; a distance measurement unit to measure, on the basis of the peak frequency, a distance from a predetermined reference point to the object; and a distance output unit to output distance information indicating the distance.