A machine tool includes: a movable body that supports a tool; a feed drive unit that feed-drives the movable body; a numerical control unit that controls the feed drive by the feed drive unit to perform cutting by the tool; an acceleration sensor that is provided on the movable body and detects acceleration of the movable body; and a command unit that outputs a stop command to stop driving of the feed drive unit to the numerical control unit when the acceleration of the movable body exceeds a threshold value set in advance on the basis of an output of the acceleration sensor. The command unit sets the threshold value to a first threshold value in a cutting control state, and sets the threshold value to a second threshold value lower than the first threshold value in a feed control in a non-cutting control state.

An information processing device includes: a mesh setting unit that sets a plurality of mesh zones in a captured image including a scattering range of a substance scattered during machining by a machine tool; an accepting unit that accepts a selection of one or more mesh zones corresponding to an area for removing the substance from the plurality of mesh zones; a substance recognition unit that recognizes a substance state in the mesh zones corresponding to the area with respect to the captured image; and a display instruction unit that instructs display of indicators based on the substance state recognized in the area in time series.

A process includes: (i) receiving image data, dividing a portion of the image data into a plurality of grids including a first grid, a second grid, a third grid, and a fourth grid, dividing the portion of the image data into a plurality of areas including (a) a first area including the first grid and the third grid, and (b) a second area including the second grid and the fourth grid; (ii) detecting an object relating to the first grid; and (iii) when the object is detected in the first grid, generating a signal for controlling discharge of fluid from a fluid discharging unit so that fluid flows through the first area including the first grid.

A machining center NC operation panel with a body temperature management function that makes a physical condition determination in accordance with body temperature measurement of an operator, can restrict the start of work at time of a determination that the physical condition is inappropriate, and also is capable of body temperature management of a worker and the like at all times, includes a visible region image camera and an infrared ray detection camera respectively with a visible light condensing lens, and an infrared ray condensing lens being mounted exposed on the front face of the operation panel. The machining center NC operation panel has a storage unit having an operator list created for each operator pre-registered as a machine tool user, a facial image file, and a body temperature management file storing body temperature databases of machine tool users and body temperature databases of body temperature management users. A control unit includes: a facial authentication processing unit that compares facial image data of an operator obtained from the visible region image camera with a facial image data group in the facial image file, searches for a relevant person, and identifies the operator; a work information processing unit that calls a work information allocated to the identified operator from the operator list, and, on the basis of the work information, causes a display section of the operation panel to display allowed work items of the operator such that the allowed work items can be selected and executed; and a body temperature acquisition processing unit that acquires a body temperature measurement value of the operator from face surface temperature data obtained by the infrared ray detection camera, causes the display section to display the body temperature measurement value, also assesses whether or not the operator has a fever on the basis of the body temperature measurement value, outputs a signal representing the result of the assessment to the work information processing unit, and simultaneously causes the display section to display an assessment screen. The work information processing unit has a function by which upon receiving a signal representing an assessment that the operator who is a machine tool user is in a fever condition from the body temperature acquisition processing unit in the work management mode, the display section is caused to lock an operation screen, and prohibit continuation of operation of the start of work.

An end mill inspection device, which inspects an end mill having a blade part formed in a curved convex shape or an arc shape, includes: an imaging data acquisition unit that acquires imaging data obtained by capturing an image of a blade part of the end mill by an imaging unit; a contour extraction unit that extracts the contour of the blade part on the basis of the imaging data acquired by the imaging data acquisition unit; and a curvature radius calculation unit that calculates a curvature radius of the contour on the basis of the contour of the blade part extracted by the contour extraction unit.

There is a need for technology that enables accurate movement of chips without performing huge image processing. Provided is a display device for displaying an image captured by an imaging unit included in a machine tool. The machine tool includes a liquid ejection unit that ejects a liquid so as to move chips generated from a workpiece and the imaging unit that captures an image inside the machine tool. The display device includes: a display unit that displays the image captured by the imaging unit; a detection unit that detects an input to a predetermined position in the image displayed on the display unit; and a transmission unit that transmits an ejection signal for ejecting a liquid from the liquid ejection unit to a related area inside the machine tool related to the predetermined position, based on a detection signal according to the detection.

A system, method, and device for automated precision control of a computer numerical control (CNC) machine to a workpiece. The system receives via at least one visual input device at least one detectable marking on a workpiece. The system decodes the at least one detectable marking and determines a stored and pre-defined movement routine of a cutting element attached to the CNC machine relative to the workpiece based on the at least one marking. The system then determines, using the at least one visual input device and/or another visual input device, a current position of a working end of the cutting element relative to the at least one marking. Finally, the system performs the pre-defined movement routine including cutting into the workpiece with the cutting element.

A three-dimensional target capable of serving as a positioning reference, including, on a useful face, a first structure and a second structure. The first structure defines a planar reference face divided up between at least a first portion whose surface is reflective according to a diffuse reflection, and a second portion whose surface is reflective according to a specular reflection, the second portion being divided up according to a series of localized zones positioned in the first portion. The second structure has an inclined face relative to the planar reference face. Applicable to three-dimensional optical measurement of the relative position between a first object and a second object.

A machine control device includes: an imaging control unit that controls the imaging device to capture two images at two different imaging positions; an imaging position information acquiring unit that acquires positional information of the two imaging positions; a measurement distance restoring unit that restores a measurement distance of the object based on two images, distance information between two imaging positions, and a parameter of the imaging device by using a stereo camera method; and a predetermined precision position calculating unit that calculates distance information between the two imaging positions at which the measurement precision of the object satisfies a predetermined precision based on the two images, the measurement distance of the object, and the parameter of the imaging device, in which the machine control device controls the position and orientation of the imaging device based on the distance information between the two imaging positions, and changes two imaging positions.

A display device, a machine tool, and a liquid ejection method with which a liquid ejection path for efficient chip removal can be created, without performing huge control process. The display device is for displaying an image in order to eject a liquid and move chips generated from a workpiece in a machine tool. The machine tool includes a liquid ejection unit that ejects a liquid so as to move chips generated from a workpiece, and an imaging unit that captures an image of a target area in which chips generated from a workpiece are to be detected in the machine tool. The liquid is ejected to the target area, based on a first position and a second position in the image captured by the imaging unit. The display device includes: a display unit that displays an image captured by the imaging unit; a detection unit that detects a first input signal corresponding to the first position in the image displayed on the display unit, and a second input signal corresponding to the second position in the displayed image; and a transmission unit that transmits the detected first and second input signals to a signal generation unit, the signal generation unit generating a control signal that controls to create a liquid ejection path in the target area, based on the first and second positions, for ejecting a liquid, based on the liquid ejection path.