A multi-station turning tool includes a lower bottom plate mechanism. A first hydraulic pipeline arranged in hydraulic fluid to an upper and an end face clamping hydraulic cylinders; a supporting plate mechanism internally provided with an air-detection pipeline; a positioning mechanism includes a substrate and a plurality of supporting blocks; an upper clamping mechanism includes a V-shaped clamping block connected to an upper clamping big arm that's connected to the upper clamping hydraulic cylinder; an end face clamping mechanism includes an end face clamping block that's connected to an end face clamping big arm that's connected to the end face clamping hydraulic cylinder through a piston ejector rod; an end face clamping air-detection mechanism includes an air pressure detection component, connected to a controller, and is capable of detecting a pressure of the air-detection pipeline to identify working states of the positioning mechanism and the upper clamping mechanisms.

A first piston, a first cylinder chamber, a second cylinder chamber, and a second piston are provided to be arranged side by side along a first direction from a base body side toward a fixation-target object side in an order of the first piston, the first cylinder chamber, the second cylinder chamber, and the second piston.

A transmission arrangement for energy and/or signal transmission between a control unit of a machine tool and at least one electronic component, in particular for use in a machining center or a turning and/or milling center. The transmission arrangement is configured to transmit energy and/or signals between electronic components arranged on a pallet and a control unit of a machine tool. The method shows a procedure for automated machining of a workpiece by means of a machine tool, in particular when electronic components are arranged on a pallet on which the workpiece is clamped.

An object fastening device which can prevent foreign matter from ending up damaging an object when confirming the object is properly seated, which object fastening device is provided with a receiving part, a pushing part which pushes the object against the receiving part, a first drive part which makes the pushing part generate a first force, a second drive part which is provided separate from the first drive part and makes the pushing part generate a second force which is smaller than the first force, and a foreign matter detecting part which detects foreign matter which is interposed between the object and receiving part while the second drive part is being used to cause the pushing part to push the object against the receiving part.

The invention relates to a clamping chuck for clamping pallets furnished with a clamping spigot. The clamping chuck has a locating opening for the clamping spigot and a clamping device for clamping the clamping spigot in the locating opening. A plurality of sensors are arranged on the clamping chuck, by means of which the clamping force actions on the clamping spigot may be determined as well as other values. The clamping chuck is equipped with a transmitter for wireless transmission of parameters detected by means of the one or more sensors.

A magnetic apparatus (1) comprising a magnetizable surface (2) configured to anchor a one or more ferromagnetic elements in a removable manner and a plurality of magnetic poles (3), each provided with a free surface (4) thereof, the magnetizable surface (2) being at least partially defined by the free surfaces (4) of said plurality of magnetic poles (3) placed side by side; one part of said magnetic poles (3) has at least two measuring areas (5) on the free surface thereof, each measuring area (5) being associated with at least one sensor (6) adapted to detect a magnetic flux exiting from said area.

To provide a tool transfer apparatus including gripping force measuring unit for tool holding unit of a tool accommodation apparatus and a machining system including the tool transfer apparatus, a handling robot can perform operation of detaching a tool from a grip positioned at a tool attachment/detachment position of a tool magazine in a machine tool and transferring the tool to a tool stocker, and operation of transferring a tool from the tool stocker and attaching the tool to a grip positioned at the tool attachment/detachment position of the tool magazine. A hand portion of the handling robot is provided with a force sensor, which can detect a load applied to the hand portion. Also, a control apparatus of the handling robot and a control apparatus of the machine tool are connected via a data cable capable of transmission and reception of information.

A motor-driven machine-tool unit such as a multi-axis turning head or a motor spindle, having a stator unit and at least one rotor unit that is rotatable about a rotation axis, wherein the rotor unit comprises at least one tool receptacle unit having a tool clamping device that is adjustable in a longitudinal direction of the rotation axis and impingeable with a clamping force, for fixing and bracing a releasably fixable tool, wherein comparatively high requirements are met, in particular, in terms of the accuracy of the machining and/or the reliability in the machining. According to the present invention, this is achieved above all in that at least two clamping force sensors are provided for detecting the bracing of the tool clamping device, in particular the clamping force that is caused in the fixing and bracing.

An open/shut valve mechanism for detecting that a piston member of a hydraulic pressure cylinder has reached an unclamp position comprises: a valve body reception hole that communicates with a unclamp hydraulic pressure operating chamber, a valve body movably received in the valve body reception hole and having an annular concave engagement portion on its external circumferential portion; a spherical body that is movably installed in a cylinder main body and that can engage with the concave engagement portion; and an engagement portion that is formed on an auxiliary rod and with which the spherical body can engage; and when hydraulic pressure is charged into the unclamp hydraulic pressure operating chamber and the piston member has reached its unclamp position, the valve body receives the hydraulic pressure, a portion of the spherical body engages to the engagement portion and the valve body changes over to the valve closed position; and, when the piston member has shifted from its unclamp position, the spherical body engages with the annular concave engagement portion without engaging to the engagement portion, so that the valve body is held in its open position.

A method for machining a workpiece which can prevent a reduction in machining accuracy and production efficiency. The method includes pressing a clamp part against a first portion of the workpiece, to clamp the workpiece in cooperation with a workpiece receiving part, causing the clamp part to move away from the first portion, to release the workpiece, which has been clamped by the clamp part, operating a robot to cause a robot hand to grasp a second portion of the workpiece, which is different from the first portion, to restrict the movement of the workpiece relative to the workpiece receiving part without a change in the posture of the workpiece, and operating a machine tool to machine the first portion while restricting the movement of the workpiece relative to the workpiece receiving part.