A tool unit includes a tool head, a motor and a switching drive for the head. The head has a first section with first blades and a second section with second blades. The second section is movable to and fro between a passive and an active position relative to the first section, the second blades being retracted in the passive position, and the second blades projecting axially beyond the first blades in the active position. The drive includes an electromagnet and an actuating armature made from magnetically attractable material and is arranged in the region of action of the electromagnet. The electromagnet is positioned between the head and the motor and is fastened to a housing part of the motor such that it cannot be rotated. The armature is connected fixedly to the second section. A gap remains between the electromagnet and the armature in the passive and active position.

A machine tool for machine processing workpieces by using a tool having a pull stud at a proximal end portion thereof. The machine tool includes a tool magazine having a number of tool holders each of which is capable of attaching and detaching the tool, a spindle which holds the tool at the time of machine processing the workpieces, and a controller which determines whether or not the pull stud is appropriate on the basis of detected data of a visual sensor which is provided inside or outside the machine tool, and which captures images of the pull stud of a tool holder of the tool, or detected data of a sensor which is provided inside the tool magazine, and which measures length, electric resistance, or electric capacity of the pull stud.

The system includes a cell framework for defining a manufacturing area. The system includes at least one workplace within the manufacturing area. The system includes at least one manufacturing component within the manufacturing area and configured to be movable along three axes in relation to the at least one workplace. The system includes a conveying mechanism configured to move a part into the at least one workplace to be worked on by the at least one manufacturing component.

Provided are a tool changer and a machine tool having a plurality of tool storage magazines and capable of suppressing the generation of vibration. The tool changer performs tool change between first and second tool storage magazines. The center of gravity of the second magazine is disposed below the tool change positions of the first and second magazines. Preferably, the second magazine is inclined with respect to a horizontal plane.

A gripping device is provided in a turret-type tool magazine of a machine tool and grips a tool or a tool holder that holds the tool. The gripping device includes: a pair of arms configured to grip the tool or the tool holder by pinching the tool or the tool holder between the arms, a main body part configured to support the pair of arms so that each of the paired arms swings in the pinching directions to pinch the tool or the tool holder between the arms; and an angle detector configured to detect a physical quantity indicating a swing angle of the arm.

An information processing system includes a request accepting unit for accepting a request for a selected pot to store a selected tool in a pot of a machine tool magazine; a storing unit for storing a setting value in each of a first cell and a second cell of the selected pot; a selecting unit for selecting the first cell or the second cell for the selected pot; a determining unit for determining a condition to store the selected tool in the selected pot on the basis of a size of each tool, a selected cell, and a storage condition of each of the pots; and an informing unit for informing when the condition of storage is not met.

A tool change unit includes a base and two tool arms rotatably mounted on the base and respectively located on two sides of the base. Each arm body includes a position-returning element, a gripping element, and an actuation element. The position-returning element enables the tool arm to rotate for upward and downward moving between a first position and a second position. The gripping element functions to grip a main-axle tool or a magazine tool. The tool change unit is combinable with a power unit to form a tool change device. The power unit drives the tool change unit to do rotation or rotation and upward and downward movement.

In order to configure a multi-spindle machine tool comprising a machine frame, a spindle drum arranged on the machine frame to be rotatable about a spindle drum axis and having a plurality of workpiece spindles, each of which is provided with a workpiece receptacle for a workpiece that is to be machined in a working area, a plurality of tool carriers arranged in the working area, in particular associated with individual spindle stations, and each having a tool holder receptacle into which a tool holder is insertable, as well as a machine control system for controlling the machine tool to be more efficient, it is proposed that a handling apparatus is arranged on the machine frame, that with the handling device, also controlled by the machine control system, at least one tool holder is insertable into at least one of the tool holder receptacles and/or removable therefrom.

A cutting fluid jet machine includes: a cutting fluid jet nozzle; a nozzle-angle adjusting servo motor; a nozzle-length adjusting servo motor; a nozzle-location calculating unit; and a nozzle controlling unit for controlling an angle and a length of the cutting fluid jet nozzle in accordance with movement of a machine tool in a spindle direction based on a nozzle location calculated by the nozzle-location calculating unit.

An apparatus for exchanging a tool of a boring bar may include a magazine, a frame, a guide rail and an actuator. The magazine may be configured to receive a plurality of the tools. The frame may be arranged under the magazine. The guide rail may be arranged on the frame. The magazine may be movably connected to the guide rail. The actuator may be configured to rotate the magazine. Thus, the magazine configured to hold the tools may be arranged between the main shaft and the spindle exchanging apparatus to reduce a weight of the tool.