A machining device for scraping a workpiece is provided. The machining device includes: a drive unit for driving a scraper; a first detection unit for detecting the position of the scraper; a second detection unit for detecting the machining force of the scraper with respect to the workpiece; a first acquisition unit for acquiring information relating to displacement of the scraper; a second acquisition unit for acquiring information relating to the machining force of the scraper; and a control unit for driving the drive unit based on the information relating to the displacement of the scraper by the first acquisition unit and the information relating to the machining force of the scraper acquired by the second acquisition unit, so the displacement and the machining force of the scraper satisfy a prescribed relationship. A control device and a control method for the machining device are also provided.

An electric tool system includes an electric tool and an inspection device. The electric tool includes: a tightening unit configured to tighten a workpiece onto an attaching target by driving force of a drive source; and a sensor configured to measure a tightening torque provided by the tightening unit. The inspection device includes a measuring unit configured to measure tightening force applied from the tightening unit. The electric tool system further includes an association processor configured to associate a first torque measured value with a second torque measured value. The first torque measured value corresponds to a measurement result by the sensor. The second torque measured value corresponds to a measurement result by the measuring unit.

A numerical controller outputs a feature amount of time-series data generated in relation to machining. The numerical controller is provided with a data acquisition unit configured to acquire the time-series data from a sensor, a feature amount calculation unit configured to sort the time-series data by their values, extract a set of the time-series data with variations of the values not higher than a predetermined threshold, and calculate the feature amount representative of the set, and a feature amount output unit configured to output the feature amount.

A confirmation method for a tool of a machining process, applied to detect a health status of a tool changing device, includes following steps: obtaining tool data of a processing equipment from a storage unit of the tool through a first wireless transmission module; interpreting tool data, and converting an interpreting result into a tool assembling status data string; interpreting a tool acquirement corresponding to a process of a processing program, and converting the interpreting result into a process-related tool acquirement data string; and, comparing the tool assembling status data string with the process-related tool acquirement data string, and outputting a program and tool matching data string. In addition, a system for confirming a tool of a machining process is also provided.

A numerical control device is intended for a machine tool that machines a workpiece using a multi-edge tool including a plurality of edges of different specifications, the numerical control device including: a tool information memory that stores edge type numbers in association with tool type numbers; a tool type-edge type selection command decoding unit that prefetches a plurality of blocks of a machining program, decodes a tool type selection command for selecting one of the tool types and/or an edge type selection command for selecting one of the edge types in the plurality of prefetched blocks, and generates internal information including the tool type selection command and/or the edge type selection command that have been decoded; and a tool selection unit that selects one tool with which the number of times of tool replacement is minimized during execution of at least the plurality of prefetched blocks.

The present disclosure is intended to enable a user to grasp a state of load on an arithmetic processing unit (100, 200) so that the user can stop an excessive function of the arithmetic processing unit (100, 200), or can transfer part of arithmetic processes to another arithmetic processing unit (100, 200) with a small load. Included are the arithmetic processing unit (100, 200) that executes a plurality of processes related to servo control processing; and an observation unit (300) that determines at least one of point-of-time information about start of each of the processes executed by the arithmetic processing unit or point-of-time information about end of each of the processes executed by the arithmetic processing unit; and an output unit (400) that calculates information about usage of the arithmetic processing unit based on the point-of-time information determined by the observation unit, and outputs the calculated information. The information about the usage is constituted by, for example, a processing time period during which the processes are executed by the arithmetic processing unit, a difference between a given processing time period and the processing time period during which the processes are executed, a ratio of the processing time period during which the processes are executed to the given processing time period, or a ratio of the difference to the given processing time period.

A controller includes a determination circuit, a setting circuit, and a control circuit. The determination circuit is configured to determine whether a chatter vibration is occurring while a spindle is rotating and a workpiece is being cut. The setting circuit is configured to set an upper limit and a lower limit on a change amount of a rotational speed of the spindle. The control circuit is configured to determine the change amount randomly from a range between the upper limit and the lower limit and configured to rotate the spindle at a second rotational speed obtained by changing a first rotational speed by the change amount that has been determined if the chatter vibration is determined as occurring while the control circuit controls the rotational speed of the spindle at the first rotational speed.

A machine tool control device according to as embodiment of the present disclosure is a machine tool control device which controls a machine tool having a plurality of drive axes, the machine tool control device including: an input acceptance unit which accepts an input from outside; and a modeling unit which models a driven body which is driven by the drive axes on virtual 3D space, in which the input acceptance unit has a parameter setting unit is which a parameter designating an operating condition of the plurality of drive axes is inputted, and in which the modeling unit includes: a driven body arrangement unit which arranges a model of the driven body on the virtual 3D space, based on the parameter inputted in the parameter setting unit, and a projection image generation unit which generates a projection image of the model of the driven body arranged by the driven body arrangement unit.

A machine tool system includes a machine tool main body for machining a workpiece supported on a table by using a tool detachably attached to a spindle, and an information processing apparatus. The machine tool main body includes a rotary tool magazine in which multiple grips each capable of holding the tool to be attached to the spindle are provided along the circumferential direction, and an image pickup device that is arranged in the tool magazine and configured to take an image of multiple members in a machining area of the machine tool main body. The information processing apparatus includes a geometric feature calculating unit configured to calculate the shapes and the arrangement state of the multiple members in the machining area, based on image data of the image taken by the image pickup device.

A numerical controller includes a coordinate management unit that updates machine origin offset data indicating a positional relationship between a machine origin of a machine tool and a machine origin of a robot depending on movement of the machine origin of the machine tool or the machine origin of the robot; and an interference check processing unit that detects interference between the machine tool and the robot on the basis of a position of a first interference definition area and a position of a second interference definition area, and the updated machine origin offset data.