Disclosed is a machining center. The machining center includes a bed structure deflected along a deflection curve by a load distribution thereon, a palette structure secured to a first end portion of the bed structure, a spindle assembly to which a machining tool is secured and secured to a second portion of the bed structure, a table movably secured to the bed structure such that a table loading is applied to a load point of the bed structure and an automatic aligner automatically detecting first and second installation errors of the table and the spindle assembly and automatically correcting the first and the second installation errors such that the workpiece and the tool are aligned with each other. The misalignment between the workpiece and the tool is automatically detected and corrected in the machining center.

A clamping apparatus is provided with: a metallic detector that is provided to a pivot shaft pivotally moving integrally with a clamp arm under the operation of a driving unit, in such a manner as to extend along the pivot shaft so as to be around the axis thereof; and one proximity sensor that is arranged so as to be opposed to the detector and that detects the magnetic loss of the detector. The detector is formed so that the area of a sensor opposing part opposed to a detection surface of the proximity sensor changes in association with the pivotal moving of the pivot shaft.

A magnetic device for magnetically coupling to a ferromagnetic body, comprises a housing having a central bore. A plurality of pole sectors arranged within an envelope of the central bore and forming a workpiece contact interface of the magnetic device, each of the plurality of pole sectors comprising a plurality of spaced-apart pole portions arranged at respective distances, wherein a recess of a plurality of recesses separates each pole portion of the plurality of pole portions, wherein a first sector forms a first pole of the magnetic device and a second sector forms a second pole of the magnetic device. A first permanent magnet. A second permanent being moveable relative to the first permanent magnet. And, an actuator operatively coupled to the at least one second permanent magnet to move the at least one second permanent magnet relative to the at least one first permanent magnet.

A magnetic device for magnetically coupling to a ferromagnetic body, comprises a housing having a central bore. A plurality of pole sectors arranged within an envelope of the central bore and forming a workpiece contact interface of the magnetic device, each of the plurality of pole sectors comprising a plurality of spaced-apart pole portions arranged at respective distances, wherein a recess of a plurality of recesses separates each pole portion of the plurality of pole portions, wherein a first sector forms a first pole of the magnetic device and a second sector forms a second pole of the magnetic device. A first permanent magnet. A second permanent being moveable relative to the first permanent magnet. And, an actuator operatively coupled to the at least one second permanent magnet to move the at least one second permanent magnet relative to the at least one first permanent magnet.

A magnetic chuck has a piston assembly that contains a cylindrical permanent magnet and a core yoke. The piston assembly is movable inside a cylinder tube. The permanent magnet is provided on the outer periphery of the core yoke and is magnetized in the radial direction.

A magnetic base for an electric power tool, in particular for a magnetic core drilling machine. The magnetic base having a base body that has a contact surface for contacting a workpiece to be machined, at least one first permanent magnet and at least one second permanent magnet arranged in the base body, the at least one and second permanent magnet having magnetic forces that interact to form a resulting holding force. The at least one first permanent magnet and the at least one second permanent magnet are supported in the base body and rotatable around its own rotation axis between a first position, in which the resulting holding force of the magnetic base is maximized, and a second position, in which the resulting holding force of the magnetic base is minimized.

A machining system includes a machining unit and a moving apparatus configured to move the machining unit. The machining unit includes a rotating tool for rotating about an axis in a vertical direction, an upper surface abutting member configured to be abutted against an upper surface of a work, an end face abutting member configured to be abutted against an end face of the work between an upper edge and an lower edge of the work, and a vertical moving unit configured to change a position of the upper surface abutting member in the vertical direction with respect to the rotating tool. The rotating tool includes a machining portion main body, a first machining portion provided on a lower side of the machining portion main body, and a second machining portion provided on an upper side of the machining portion main body.

The invention relates to a magnetic holding device (10), in particular a clamping device, comprising a holding surface (9) and at least one first permanent magnet (11), characterized in that the holding device (10) comprises at least one second permanent magnet (12) which is rotatably mounted relative to the at least one first permanent magnet (11) about a rotational axis (3), whereby the pole direction (2) of the second permanent magnet (12) is rotatable relative to the pole direction (1) of the first permanent magnet (11).

The present disclosure relates to a magnetic apparatus for magnetically anchoring ferrous elements (P1), comprising a support structure (11) in which thickness (S) a plurality N of polar units (30A) is housed, said support structure (11) identifies a first and a second side (12, 13) at the opposite surfaces with the greatest extension, each of said plurality N of polar units (30A) comprising a coil (30) having a support (31) of predetermined profile and an electric conductive element (32) wound on said support, a first magnetic core (40) with a first coercive value, generating a first magnetic flow oriented in a first magnetic direction, a plurality of second magnetic cores (90A, 90B) having each its own coercive value, different from said first coercive value. A characteristic of the apparatus is that a first part (90A) of the plurality of second magnetic cores (90A, 90B) generates a second magnetic flow oriented in a second magnetic direction and a second part (90B) of the plurality of second magnetic cores (90A, 90B) generates a third magnetic flow oriented in a third magnetic direction, said third magnetic direction being parallel to said first magnetic direction and of different direction with respect to said second magnetic direction.

Disclosed is a machining center. The machining center includes a bed structure deflected along a deflection curve by a load distribution thereon, a palette structure secured to a first end portion of the bed structure, a spindle assembly to which a machining tool is secured and secured to a second portion of the bed structure, a table movably secured to the bed structure such that a table loading is applied to a load point of the bed structure and an automatic aligner automatically detecting first and second installation errors of the table and the spindle assembly and automatically correcting the first and the second installation errors such that the workpiece and the tool are aligned with each other. The misalignment between the workpiece and the tool is automatically detected and corrected in the machining center.