A high-precision linear actuator is described that includes a first straight-guide mechanism that guides movements of an actuator element and a working device relative to an actuator housing. A pressing mechanism that, in a pressing-contact condition, presses the actuator frame and the actuator housing with a predetermined force against one another. A second straight-guide mechanism that guides movements of the actuator housing relative to the actuator frame between the pressing-contact condition and released-contact conditions in which the pressing mechanism presses the actuator frame and the actuator housing towards one another. The high-precision linear actuator provides a safety mechanism automatically reinstates negative consequences of unforeseen collisions in the working environment. In addition the high-precision linear actuator allows for a compact and light-weight design of the actuator element and the working device, which improves operational speed and effectivity of the linear actuator.

A machine tool for machining workpieces has a machine frame, at least one component part which can be moved along a movement path by means of a power-operated drive unit, at least one frame part, which is connected to the machine frame and which is arranged at an end position in the movement path of the component part, and at least a first stop, via which the component part in contact with the frame part when said component part is in the end position, wherein the first stop lies outside the movement path.

A tool spindle for machine tool includes a tool spindle having a front end in which a tool is mounted and installed to be rotatable, and a vibration damping device mounted in a rear end of the tool spindle to damp cutting vibration generated at the front end of the tool spindle, and including a rigid member coupled to the rear end of the tool spindle and a tuned mass member elastically supported by the rigid member.

A tool spindle for machine tool includes a tool spindle having a front end in which a tool is mounted and installed to be rotatable, and a vibration damping device mounted in a rear end of the tool spindle to damp cutting vibration generated at the front end of the tool spindle, and including a rigid member coupled to the rear end of the tool spindle and a tuned mass member elastically supported by the rigid member.

The invention is directed to a handheld work apparatus having 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.

The invention is directed to a handheld work apparatus having 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 system is placed upon a target object and a machining tool. The system comprises a variety of sensors to detect adverse relative movement and position loss of the target object as it is affected by the machining tool. The system further comprises portable sensors in communication with a printed control board, configured to communicate position data to a remote computing device. The remote computing device may receive the position data, process it, and present output to a display. The system may detect position, kinematic, and mechanical issues present during the machining process by comparing the position data to thresholds, including position loss, and automatically adjust the operation of the machining tool in response.

A manufacturing process switch with a housing consisting of a first member and a second member. The first member is rotatable from a closed position to an open position. A proximity sensor is secured to the housing that detects the proximity of the first member to the second member and generates a signal when the first member is in the open position. An engagement device is secured to the housing for retaining the first member to the second member in the closed position. A cable attachment mechanism is attached to the first member of the housing and securable to a cable of a tool. The first member is rotatable from the closed position to the open position when a breakaway force is applied to the cable attachment mechanism. The manufacturing process is stopped when the first member is in the open position.

A manufacturing process switch with a housing consisting of a first member and a second member. The first member is rotatable from a closed position to an open position. A proximity sensor is secured to the housing that detects the proximity of the first member to the second member and generates a signal when the first member is in the open position. An engagement device is secured to the housing for retaining the first member to the second member in the closed position. A cable attachment mechanism is attached to the first member of the housing and securable to a cable of a tool. The first member is rotatable from the closed position to the open position when a breakaway force is applied to the cable attachment mechanism. The manufacturing process is stopped when the first member is in the open position.

A high-precision linear actuator (1) comprises: a first straight-guide mechanism (11A, 11B, 11C), which guides movements of an actuator element (4) and a working device (6) relative to an actuator housing (3); a pressing mechanism (7, 8, 9), which in a pressing-contact condition presses the actuator frame (2) and the actuator housing (3) with a predetermined force against one another; and a second straight-guide mechanism (12A, 12B), which guides movements of the actuator housing relative to the actuator frame between said pressing-contact condition and released-contact conditions in which the pressing mechanism presses the actuator frame and the actuator housing towards one another. The invention provides a safety mechanism which automatically reinstates negative consequences of unforeseen collisions in the working environment. In addition the invention allows for a compact and light-weight design of the actuator element and the working device, which improves operational speed and effectivity of the linear actuator.