A machine tool controller according to an embodiment of the present invention, for controlling a spindle and a feed axis, includes a motor temperature obtaining unit for obtaining and outputting the winding temperature of a spindle motor as a motor temperature; an inverter temperature obtaining unit for obtaining and outputting the temperature of an inverter that drives the spindle motor as an inverter temperature; a motor temperature comparator for comparing the outputted motor temperature with an overheat temperature for the motor; an inverter temperature comparator for comparing the outputted inverter temperature with an overheat temperature for the inverter; and an overheating assessment unit for imposing a restriction on the output of the spindle motor according to the smaller one of the differences between the motor temperature and the overheat temperature for the motor and between the inverter temperature and the overheat temperature for the inverter.

The present disclosure relates to a machine tool cable protection device including a universal head having a rotary part and rotatably and tiltably installed in a ram body, a cable having one side connected to a rotary part of the universal head, and the other side connected to a supply source, a rotation unit disposed on the rotary part of the universal head and configured to wind or unwind the cable while rotating in conjunction with a rotation direction and a rotation angle of the rotary part of the universal head, and a movement unit disposed in the ram body so as to rectilinearly reciprocate to compensate for a change in length of the cable that is wound around or unwound from the rotation unit in accordance with a rotation direction and a rotation angle of the rotation unit.

The present disclosure relates to a machine tool cable protection device including a universal head having a rotary part and rotatably and tiltably installed in a ram body, a cable having one side connected to a rotary part of the universal head, and the other side connected to a supply source, a rotation unit disposed on the rotary part of the universal head and configured to wind or unwind the cable while rotating in conjunction with a rotation direction and a rotation angle of the rotary part of the universal head, and a movement unit disposed in the ram body so as to rectilinearly reciprocate to compensate for a change in length of the cable that is wound around or unwound from the rotation unit in accordance with a rotation direction and a rotation angle of the rotation unit.

A handheld work apparatus includes a work tool. The work apparatus defines a longitudinal plane and includes a handle having a longitudinal axis. The blocking lever is mounted so as to be pivotable about a rotational axis. The blocking lever blocks the actuating lever in a blocking or disable position and enables the actuating lever for actuation in at least one operating enable position. In the direction of view perpendicular to the longitudinal plane, the longitudinal axis of the handle and the rotational axis of the blocking lever conjointly define an angle (). The angle () lies in a range of from 10 to 60.

A handheld work apparatus includes a work tool. The work apparatus defines a longitudinal plane and includes a handle having a longitudinal axis. The blocking lever is mounted so as to be pivotable about a rotational axis. The blocking lever blocks the actuating lever in a blocking or disable position and enables the actuating lever for actuation in at least one operating enable position. In the direction of view perpendicular to the longitudinal plane, the longitudinal axis of the handle and the rotational axis of the blocking lever conjointly define an angle (). The angle () lies in a range of from 10 to 60.

A pressing tool for plastically deforming a workpiece is described. The pressing tool includes a housing and an electric motor for actuating the pressing tool. The pressing tool also includes an instrument seat which is adapted to receive an interchangeable instrument head at the housing. The pressing tool also includes a mechanical safety element which is arranged in a manner that is movable from an open position, in which an instrument head may be inserted into the instrument seat, into a closed position, in which the instrument head is locked in the instrument seat. The pressing tool additionally includes a mechanical actuating element which may interact with the safety element in order to be able to cause the pressing tool to be enabled for a pressing process.

A pressing tool for plastically deforming a workpiece is described. The pressing tool includes a housing and an electric motor for actuating the pressing tool. The pressing tool also includes an instrument seat which is adapted to receive an interchangeable instrument head at the housing. The pressing tool also includes a mechanical safety element which is arranged in a manner that is movable from an open position, in which an instrument head may be inserted into the instrument seat, into a closed position, in which the instrument head is locked in the instrument seat. The pressing tool additionally includes a mechanical actuating element which may interact with the safety element in order to be able to cause the pressing tool to be enabled for a pressing process.

A system and method for collaborative manufacturing system operation for a linear motor conveyor system including one or more moving elements. The system includes: at least two safety gates arranged on the linear motor conveyor system creating a collaborative area between the safety gates. Each safety gate includes: a body; two doors, one on each side of the body; an interlock connecting the two doors such that only one door can remain open at a time; and a control system to control the safety gates in coordination with the linear motor conveyor system. The method includes: configuring an operating status, which may be non-collaborative, collaborative, or semi-collaborative modes; monitoring a safety trigger and, if activated, performing a safety action and controlling according to the type of safety trigger; monitoring if the safety trigger is removed; and if the safety trigger is removed, return to operating in the configured mode.

A system and method for collaborative manufacturing system operation for a linear motor conveyor system including one or more moving elements. The system includes: at least two safety gates arranged on the linear motor conveyor system creating a collaborative area between the safety gates. Each safety gate includes: a body; two doors, one on each side of the body; an interlock connecting the two doors such that only one door can remain open at a time; and a control system to control the safety gates in coordination with the linear motor conveyor system. The method includes: configuring an operating status, which may be non-collaborative, collaborative, or semi-collaborative modes; monitoring a safety trigger and, if activated, performing a safety action and controlling according to the type of safety trigger; monitoring if the safety trigger is removed; and if the safety trigger is removed, return to operating in the configured mode.

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.