Yamazaki Mazak Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Akira Iseki

Toshiyuki Muraki

Eiji Hayashi

Hiroyuki Kinoshita

Tomonori Sato

Tomoya Fujita

Yasuhiko Suzuki

Toshihito Okuda

Yuji Mizukami

Takeshi Kubo

Junji Matsuno

Ryo Yoshida

Takuya Hirao

Kohei Hibino

A controller includes data collect circuitry configured to collect machining data including a date and a time when at least one machined portion of a workpiece has been machined by a machine tool, temperature circuitry configured to obtain, at predetermined time intervals, temperature data at positions on the machine tool, dimension data input circuitry configured to receive dimension measurement data which includes a dimension of the machined portion after the machined portion has been machined, learning data generate circuitry configured to generate learning data based on the machining data and the dimension measurement data, and machine learning circuitry configured to execute a machine learning based on the temperature data and the learning data to obtain a correction coefficient based on which a displacement caused by a change in a temperature of the machine tool is corrected according to a thermal displacement correction equation.

Controller, machine tool, calculation method, and non-transitory computer readable storage medium

A numerical controller includes: a model holding unit that holds a machine model, the machine model being a model that simulates deformation of a mechanical structure accompanying motion of the mechanical structure in axial directions and representing an error amount as an amount of displacement of a tool; a machining error estimation unit that estimates an error direction and the error amount in the error direction on the basis of axis data that is data on drive of a drive mechanism and the machine model, the error direction being a direction in which displacement of the tool occurs among the axial directions; and a correction amount arithmetic unit that selects one or more of the axes subject to correction, and performs arithmetic to find a correction amount used for correction of a command to be output to the drive mechanism for the axis selected.

Numerical controller, numerical control machine tool, machining program generation device, and machining program generation method

An NC apparatus controls a position of a tool by driving a plurality of shafts with a plurality of servomotors. The shafts includes at least one clamp shaft that can be mechanically clamped or non-clamped. A clamp determining unit determines whether a state of the clamp shaft and outputs a signal based on the state. A correcting unit corrects a position instruction value or a position detection value of at least one shaft other than the clamp shaft based on the signal and a correction value so as to cancel an error in a position of the tool due to movement of the tool performed by the clamp shaft.

Numerical control apparatus and numerical control system

A method for generating a machining program includes inputting a coordinate value and a machining dimension of a portion to be machined with respect to the axis Z for forming a pair of restricting surfaces. The method includes determining the unit machining shape based on the inputted coordinate value and machining dimension and determining a tool in accordance with the determined unit machining shape. The method includes inputting data about cross-sectional shapes of the portion to be machined and a portion resulting from cutting; generating a machining path; and generating the machining program based on the generated machining path and the determined tool. Therefore, a machining program for forming a cut resulting portion eccentrically projecting is generated in an interactive manner.

Method and device for generation of machining program

Growing community of inventors

Aichi, Japan

Akira Iseki