Abstract: A manufacturing device for a field pole magnet body includes a reference jig having reference surfaces in the lengthwise direction, width direction, and thickness direction for positioning a plurality of cleaved and divided magnet fragments in an aligned state. The manufacturing device further includes a first pressing means that presses the plurality of magnet fragments to the thickness direction reference surface from the thickness direction of a magnet body to align them in the thickness direction, and a second pressing means that presses the plurality of magnet fragments to the width direction reference surface from the width direction of the magnet body to align them in the width direction. An operational axis line of a pressing part of at least one of the first and second pressing means is arranged to be tilted such that it approaches the lengthwise direction reference surface at the side that abuts the magnet fragments.

Abstract: A manufacture method that includes positioning the permanent magnet body of which a surface is coated with a coating film for deterioration prevention, a scheduled cleavage portion of the permanent magnet body being located between two fulcrums, which are edge portions of a die, supporting the permanent magnet body, and cleaving the permanent magnet body into a cleaved magnet body and the magnet piece by pressing the scheduled cleavage portion of the permanent magnet body is provided. The manufacture method also includes cutting the coating-film between the cleaved magnet body and the magnet piece by pressing an end portion of the cleaved magnet piece from a pressing side of the scheduled cleavage portion, the end portion being on a side opposite to a cleavage surface side.

Abstract: A cutting method and a cutting device of cutting a magnet body including a coating film feed, in a state where the magnet body in which cutout grooves serving as brittle sections are provided on a lower surface along cutting planned positions is supported by dies serving as two support points from the lower side, the magnet body to a position where the brittle section is arranged between both the support points, and press the magnet body from the upper side of a position offset rearward in the feeding direction from the brittle section between both the support points, so as to cut the magnet body into a cut magnet body and a magnet piece smaller than the cut magnet body while cutting the coating film.

Abstract: The magnet cutting device includes a pair of supporting portions spaced apart by a predetermined distance and configured to support the magnet from a bottom side, a blade configured to press the magnet supported by the pair of supporting portions from an upper side of the magnet, and a magnet supporting tool arranged between the pair of supporting portions to support the magnet from the bottom side of the magnet. A surface of the magnet supporting tool to be held in contact with the magnet is shaped such that a central part of an upper end is higher than the upper ends of the pair of supporting portions and an end part of the upper end is lower than the upper ends of the pair of supporting portions when the magnet is placed on the surface, the upper end having a slope connecting the central part and the end part.

Abstract: An apparatus for manufacturing a field pole magnetic body formed by laminating magnet segments produced by cutting and dividing a permanent magnet and to be arranged in a rotary electric machine includes a housing part adapted to successively house a plurality of the magnet segments having adhesive applied to cut surfaces with the cut surfaces facing each other and has an inner side surface adjacent to outer side surfaces of the housed magnet segments, and a pressing unit adapted to press the magnet segments housed in the housing part toward a bottom part of the housing part in a longitudinal direction. The magnet segments are restrained in a width direction and a thickness direction by the inner side surface of the housing part when the magnet segments are pressed by the pressing unit.

Abstract: A magnet insertion method into a rotor core is to insert an assembly into a magnet insertion hole provided in the rotor core of an electric motor, the assembly being formed by laminating a plurality of members, including at least a plurality of magnet pieces, in a line. According to this magnet insertion method, the assembly is formed by arranging a front member, having a surface surrounded by a chamfered ridge line, to cause the surface to be a front side end surface upon insertion, by laminating, on its rear side in an insertion direction, other members, without having the chamfered ridge line, in a line along the insertion direction to cause the other members to be hidden inside a projection of the front member when being projected from an insertion hole side, and by temporarily holding the front member and the other members.

Abstract: A magnet inserting apparatus inserts a plurality of magnet parts into each of the magnet insertion slots provided in the rotor core of a motor. The magnet inserting apparatus comprises a guiding unit equipped with a magnet inlet and a magnet outlet and is configured to align the plurality of magnet parts inserted through the magnet inlet until the inserted magnet parts are ejected from the magnet outlet, and to guide the aligned magnet parts so as to be inserted from the magnet outlet to the magnet insertion slot. A size of the magnet inlet of the guiding unit is larger than a size of the magnet insertion slot, a size of the magnet outlet is the same as or smaller than the size of the magnet insertion slot, and the guiding unit is formed so that a shape from the magnet inlet to the outlet becomes a taper shape.

Abstract: A magnet inserting apparatus into magnet insertion slots of a rotor core is configured to arrange a guide tape (a belt-shaped member) along an inner wall surface of the magnet insertion slot, and the guide tape having a coefficient of friction smaller than that of the inner wall surface of the magnet insertion slot. The magnet inserting apparatus is configured to insert the magnet parts into the magnet insertion slot, the guide tape (the belt-shaped member) being arranged on the inner wall surface of the magnet insertion slot.

Abstract: A method of manufacturing a magnet segment of a field pole magnet body includes cleaving a magnet material at a plurality of cleavage target regions arranged with an interval in a longitudinal direction of the magnet material. The cleavage process includes cleaving the magnet material sequentially from the cleavage target region closer to one side edge of the longitudinal direction of the magnet material, wherein a notch is formed in each of the plurality of cleavage target regions of the magnet material such that a depth of the notch closer to the one side edge becomes deeper.

Abstract: A magnet evaluating device evaluates an evaluation magnet by passing the evaluation magnet, which is formed by connecting a plurality of magnetic sections with insulating material in between, and a master magnet of the same form through an alternating magnetic field generated by an excitation coil, measuring the eddy current occurring in the magnetic section as voltage or current occurring in a detection coil and comparing the measured value for the evaluation magnet and the measured value for the master magnet.

Abstract: A manufacturing device for cleft magnets comprises a cleaving mechanism for cleaving a magnet plate by applying a pressing force to the magnet plate corresponding to a back of a groove formed on one surface of the magnet plate and a carry-in mechanism for carrying the magnet plate to a cleaving position by the cleaving mechanism. By comprising a foreign matter removal mechanism for removing a foreign matter adhering to the magnet plate before the magnet plate is carried to the cleaving position by the carry-in mechanism, the foreign matter adhering to the magnet plate is removed before cleaving.

Abstract: An apparatus for manufacturing magnet segments constituting a field pole magnetic body by cleaving a magnetic body having a coating applied to outer surfaces at a plurality of scheduled cleaving parts includes placing tables on which the magnetic body is to be placed, a pressing unit adapted to cleave the magnetic body by pressing the magnetic body at the scheduled cleaving part arranged between two placing tables, and a cutting unit adapted to cut the coating present at the scheduled cleaving part pressed by the pressing unit after the magnetic body is cleaved.

Abstract: An apparatus for manufacturing a field pole magnetic body formed by laminating magnet segments produced by cutting and dividing a permanent magnet and to be arranged in a rotary electric machine includes a housing part adapted to successively house a plurality of the magnet segments having adhesive applied to cut surfaces with the cut surfaces facing each other and has an inner side surface adjacent to outer side surfaces of the housed magnet segments, and a pressing unit adapted to press the magnet segments housed in the housing part toward a bottom part of the housing part in a longitudinal direction. The magnet segments are restrained in a width direction and a thickness direction by the inner side surface of the housing part when the magnet segments are pressed by the pressing unit.

Abstract: A method of manufacturing a magnet segment of a field pole magnet body includes cleaving a magnet material at a plurality of cleavage target regions arranged with an interval in a longitudinal direction of the magnet material. The cleavage process includes cleaving the magnet material sequentially from the cleavage target region closer to one side edge of the longitudinal direction of the magnet material, wherein a notch is formed in each of the plurality of cleavage target regions of the magnet material such that a depth of the notch closer to the one side edge becomes deeper.

Abstract: A device for manufacturing a field pole magnet body includes a reference jig having reference surfaces in a lengthwise direction, a width direction, and a thickness direction for positioning the plurality of cleaved and divided magnet fragments in an aligned state with their cleaved faces facing each other; a lengthwise direction pressing means that presses the plurality of magnet fragments from the lengthwise direction in which they are arranged to the lengthwise direction reference surface in order to align the magnet fragments in the lengthwise direction; a width direction pressing means that presses the plurality of magnet fragments from the width direction of the magnet fragments to the width direction reference surface to align them in the width direction; and a thickness pressing means that presses the plurality of magnet fragments from the thickness direction of the magnet fragments to the thickness direction reference surface to align them in the thickness direction.

Abstract: A manufacturing device for a field pole magnet body includes a reference jig having reference surfaces in the lengthwise direction, width direction, and thickness direction for positioning a plurality of cleaved and divided magnet fragments in an aligned state. The manufacturing device further includes a first pressing means that presses the plurality of magnet fragments to the thickness direction reference surface from the thickness direction of a magnet body to align them in the thickness direction, and a second pressing means that presses the plurality of magnet fragments to the width direction reference surface from the width direction of the magnet body to align them in the width direction. An operational axis line of a pressing part of at least one of the first and second pressing means is arranged to be tilted such that it approaches the lengthwise direction reference surface at the side that abuts the magnet fragments.

Abstract: A one-piece field-pole magnet is manufactured by filling a gap formed between magnetic pieces placed on a plane with an adhesive or resin. During the process, a pushing member applies a pushing force onto each of the magnet pieces in a thickness direction thereof. The pushing member comprises pushing parts each of which pushes each of the magnet pieces, thereby equalizing the pushing forces applied to the respective magnet pieces.

Abstract: An apparatus and method for surface finishing a workpiece is disclosed as including a workpiece supporting mechanism supporting a workpiece having a target shaped periphery with a given width to be surface finished and a tool holder holding a surface finish tool in abutting contact with the target shaped periphery of the workpiece. A pressure applying mechanism is operative to apply a pressure force to the surface finish tool through the tool holder to cause the surface finish tool to be held in pressured contact with the target shaped periphery, with the pressure force exhibiting a given distribution pattern depending upon an axial direction of the workpiece. A drive mechanism rotates the workpiece to allow the surface finish tool to surface finish the target shaped periphery into a given geometrical profile, variably contoured along an axis of the workpiece depending on the given pressure distribution pattern.

Abstract: A film feeder (FF1) feeds a film (1), a first drive (20) rotates a work (W), a second drive (30) moves the work (W) relative to the film (1), a shoe set handler (40) handles the shoe set (2) to press the film (1) against the work (W), and a deterioration delayer (C) is configured to delay an abrasivity deterioration of the film (1).

Abstract: A lapping apparatus lapping a work having a pre-machined surface comprises a lapping film which includes a thin substrate having a surface provided with abrasive grains, a shoe disposed at a back surface side of the lapping film, a shoe driving unit which drives the shoe toward the work in order to press the abrasive-grained surface of the lapping film to the pre-machined surface of the work, a rotational driving unit which drives the work rotationally, a detecting unit which detects the position of the rotating work in the rotating direction, and a controlling unit which controls the pressing force of the shoe driving unit so as to drive the shoe correspondingly to the position of the work in the rotating direction during machining.