A numerical control device for performing movement control of a machining tool by a fixed cycle includes a main control unit that issues a machining command to a machining device based on a machining program, a machining program analysis unit that pre-reads and analyzes the machining program, a machining state measurement unit that measures a physical quantity indicating a machining state during machining, and a start position determination unit that determines an overlap control start position based on the measured physical quantity, and the main control unit executes overlap control when determining that the machining tool reaches the overlap control start position.

A process for operating a virtual sensor for determining the condition of a tool holder on a tool machine, such as a spindle, and the condition of a tool machine which has at least one tool holder and at least one tool, attached or attachable to the tool holder, which allows a workpiece to be processed by running a machine program, and which has at least one control unit comprising at least one sensor.

A process for operating a virtual sensor for determining the condition of a tool holder on a tool machine, such as a spindle, and the condition of a tool machine which has at least one tool holder and at least one tool, attached or attachable to the tool holder, which allows a workpiece to be processed by running a machine program, and which has at least one control unit comprising at least one sensor.

The present invention is to allow for an automatic correction of an offset amount of a tool used in actual workpiece processing at an appropriate timing. The present invention provides a numerical control device for a machine tool including: an execution unit for executing a processing program; a storage unit for storing, for each tool used in each processing program, a wear amount of the each tool when executing the processing program, as a tool offset amount; a monitoring unit for monitoring the timing of the work processing end or work processing start; and a changing unit for changing, for each processing program, the present tool offset amount at the timing of the work processing end or work processing start monitored by the monitoring unit, on the basis of the tool offset amount of the processing program stored in the storage unit.

A machining device includes: a positional deviation detection unit configured to calculate a correction value for correcting a positional deviation between an ideal contour line and an actual contour line in each of a plurality of angular directions based on a center of a hemispherical shape of a tool; a distance effect coefficient calculation unit configured to calculate a first distance effect coefficient indicating a degree of influence of the positional deviation when machining a second machining point, according to a distance between the tool and the second machining point in a case where a machining point machined by the tool transitions from one-point machining including a first machining point in the workpiece to two-point machining including the first machining point and the second machining point; and a positional deviation correction unit configured to correct the positional deviation of the tool.

A can bodymaker for producing can bodies from cups. The can bodymaker comprises a ram configured to reciprocate along an axis, a punch mounted on the ram; a tool pack comprising a cradle and a plurality of tools located in the cradle for drawing and ironing a cup mounted on the punch during a forward stroke of the ram. The can bodymaker further comprises a bolster plate fixed to the can bodymaker, an adapter plate fixed to the bolster plate and a stripper assembly fixed to the adapter plate for removing a can body from the punch during a return stroke of the ram and clamping mechanism for biasing the tools against a front face of the adapter late. The can bodymaker further comprises one or more load cells located in or on the adapter plate and configured to generate an output signal or signals indicative of an axial force exerted on the tools by the cup passing therethrough.

A can bodymaker for producing can bodies from cups. The can bodymaker comprises a ram configured to reciprocate along an axis, a punch mounted on the ram; a tool pack comprising a cradle and a plurality of tools located in the cradle for drawing and ironing a cup mounted on the punch during a forward stroke of the ram. The can bodymaker further comprises a bolster plate fixed to the can bodymaker, an adapter plate fixed to the bolster plate and a stripper assembly fixed to the adapter plate for removing a can body from the punch during a return stroke of the ram and clamping mechanism for biasing the tools against a front face of the adapter late. The can bodymaker further comprises one or more load cells located in or on the adapter plate and configured to generate an output signal or signals indicative of an axial force exerted on the tools by the cup passing therethrough.

Provided is a control device for a machine tool that exchanges a tool and machines a work piece on the basis of a machining program, said control device being provided with a machining program analysis unit that analyzes a machining program and extracts, from the machining program, measurement-related information relating to a dimensional measurement of a tool, and with a measurement program generation unit that, on the basis of the measurement-related information and basic tool information input in advance, generates a measurement program for measuring the dimensions of the tool.

Provided is a control device for a machine tool that exchanges a tool and machines a work piece on the basis of a machining program, said control device being provided with a machining program analysis unit that analyzes a machining program and extracts, from the machining program, measurement-related information relating to a dimensional measurement of a tool, and with a measurement program generation unit that, on the basis of the measurement-related information and basic tool information input in advance, generates a measurement program for measuring the dimensions of the tool.

A material removing machining module for a machine tool including: a part support intended to receive a part to be machined, a control unit of the part support adapted to control and to modify the position of the part support in the machining module, a toolholder intended to receive a tool having an end portion used for machining the part; a control unit of the toolholder adapted to control and to modify the position of the toolholder in the machining module, a unit for detecting the profile of the tool mounted on the toolholder, which includes an optical system mounted on the toolholder for determining the profile of said end portion of the tool mounted on the toolholder.