Abstract: A machine tool for triaxial machining of work pieces with a machine rack. Couplers run on slewable bearings and being adjustable in an X-Y plane. These couplers are joined with a hinge. The machine tool is equipped with a tool carrier arranged at one coupler. The tool carrier is provided with a skid independently movable in X-Y-plane. The machine tool is equipped with independent drives for adjustment of the couplers. The machine tool which distinguishes itself by a simple and compact structure as well as by high stiffness of the coupler system in that at least two couplers (8,9) are run on bearings at two skids (4,5) which are adjustable in rack-proof guides by the aid of one drive each. The guides are mainly arranged in parallel to each other and with the couplers—if viewed in the projection on a X-Y plane—lying between the guides.

Abstract: A cutting insert for mounting on a milling cutter has a generally quadrangular shape with top and bottom surfaces, a pair of opposite first side surfaces intersecting the top surface at first cutting edges and a pair of opposite second side surfaces intersecting the top surface at second edges. Each second edge has a front cutting portion oriented substantially transversely to an adjacent first cutting edge and meeting therewith via a cutting corner. Each of the first and second side surfaces has upper and lower sections adjacent respective top and bottom surfaces, which sections have leading portions adjacent their associated cutting corner and trailing portions remote therefrom. The trailing portion of the lower section of each second side surface is at least slightly inwardly depressed relative to the leading portion of the lower section and is substantially inwardly depressed relative to the associated trailing portion of the upper section of the second side surface.

Abstract: The invention involves a threading tool (20) for defining an internal thread within walls (62) of a cavity (64) within a workpiece having a floor (66) around an axially disposed protuberance (68) with a top (70) extending from the floor (66). The threading tool (20) includes a first end portion (22) for gripping and a second end portion (24) for threading. Threads (30) are formed on the second end portion (24). An opening (40) is axially disposed at the second end portion (24) and extends inward to form a recess (42) and recess bottom (44) over which the threads (30) extend a distance (A), allowing internal threads to be formed along the walls (62) past the top (70) of the protuberance (68).

Abstract: Method and device for drilling holes into a mantle of a cylinder of a paper machine, in particular a drying cylinder, while the cylinder is in its site of operation in the paper machine in which a drill carriage having drill bits is supported on the cylinder being drilled. The drill carriage is locked in a fixed position relative to the cylinder being drilled the drill bits are pressed into the mantle of the cylinder to be drilled and rotating to thereby drill holes in the cylinder mantle. The drill carriage is supported on the cylinder being drilled by a first set of wheels arranged on the drill carriage during drilling and is displaced upon rotation of a second set of wheels which contact the cylinder only for axial movement and not during drilling.

Abstract: A machine tool has a vertical-axis tool spindle that receives a tool, and a workpiece table on whose upper side is arranged a fixture for clamping in a workpiece. The tool spindle and workpiece table are displaceable relative to one another in a working region in which the workpiece is arranged. The working region extends at least partially, in a direction transverse to the spindle axis, outside the workpiece table; the fixture projects in that direction beyond the table, holds the workpiece there, and is open at the bottom so that chips that are produced can freely fall downward in the direction of the spindle axis.

Abstract: A milling cutter comprises a holder and at least two cutting inserts. Each cutting insert has a generally hexagonal or octagonal basic shape and includes at least three major cutting edges. An edge face of each insert is provided with a step defining an exit zone for a fracture. At least one of the cutting inserts is a wiper insert and alternating ones of the cutting edges of the wiper insert are major cutting edges separated by a wiper edge. A first distance of the wiper insert extending between two diametrically opposed wiper edges is larger than a second distance of the wiper insert extending between two diametrically opposed major cutting edges.

Abstract: An end mill comprises an arbor, a tool body attached to an end of the arbor, and throw-away chips detachably attached to an end face of the tool body. Each throw-away chip has a cutting edge having a peripheral circular cutting edge section for shaping, and an end straight cutting edge section for end milling.

Abstract: A vibration-absorbing end effector of an automated drill and countersink machine having a shock to mitigate communications of vibrations to the drill tool, while simultaneously dampening the vibrations at their source, in order to increase control of a drill tool during drilling and countersinking operations. The end effector comprises a measurement scale to ensure that the depths of holes to be drilled and countersunk can be checked and corrected in accordance with corresponding ideal depths stored in a memory of the computer already interfaced to the end effector. Furthermore, the pressure foot of the end effector is upwardly rotatable to access the drill tool to the chuck.

Abstract: A rotary power tool is provided having a remotely actuated chuck device. The chuck is mounted onto the end of a drive spindle that extends from the casing of the power tool. The chuck includes an outer sleeve member that is axially movable relative to the drive spindle between a gripping and release position. A chuck actuating device is provided having a first member engaged with the outer sleeve member and which extends generally radially outward from the drive spindle or chuck. The first member is movable in a direction so as to move the outer sleeve member between the gripping position and release position. A solenoid and a biasing mechanism engage the first member so that the chuck device is movable between the gripping and release positions.

Abstract: Apparatus and method for positioning tooling for operation on a curved workpiece wherein a gantry beam assembly having a movable head assembly thereon carrying tooling is pivotally connected on a pivot axis to a pair of spaced apart pedestals each having a longitudinal axis disposed substantially perpendicular to the pivot axis and wherein the workpiece is supported on a fixture between the pedestals and so that the gantry beam assembly extends along the workpiece. The pivot axis of the gantry beam assembly is moved along the longitudinal axes of the pedestals, the pivot axis of the gantry beam assembly is moved along a path substantially perpendicular to the longitudinal axes of the pedestals and the head assembly is moved along the gantry beam assembly. The foregoing operations move the head assembly relative to the workpiece enabling the tooling to perform operations thereon.

Abstract: An indexable insert milling tool with a milling body which on the circumference comprises distanced chip spaces, in which insert seats for indexable cutting inserts are formed, and with fastening screws which can be screwed into a threaded bore in the insert seat for fastening the indexable inserts via a middle hole, wherein the insert seat comprises a first bearing surface extending roughly perpendicular to the threaded bore, against which the rear side of the indexable inserts bear and a second bearing surface on the inner side of the chip spaces, against which the indexable inserts laterally bear. The indexable insert on the rear side on the cutting edge sides comprise raised elongate support sections wedge-shaped in cross section with lower parallel distanced elongate support surfaces.

Abstract: A machine tool (10) has a spindle (11) for receiving a tool (15) for machining a workpiece (16). A mechanism (17) for clamping the workpiece (16) is also provided. Also provided is a changing mechanism (37) for a machining tool (29), which holds the machining tool (29) in a gripper hand (38) which it introduces laterally into a workpiece cavity (21) in such a way that it can be automatically coupled there to an adapter tool (32) carried by the spindle (11).

Abstract: A face milling cutter comprises a holder adapted to be rotatable about an axis. A plurality of first cutting inserts, and a plurality of second cutting inserts are mounted in respective pockets of the holder. The first and second inserts alternate circumferentially with one another. The first and second inserts are identical and include a center hole for receiving a fastener screw. The central hole of the first inserts are oriented orthogonally relative to the center hole of the second inserts, whereby the first inserts are turned by about 90 degrees relative to the second inserts. The axial relationship of the second inserts relative to the first inserts is determined by shims disposed between the holder and respective ones of the second inserts.

Abstract: A shield assembly 98 is disclosed which has one or more shield elements 102, 104, 106 which block, during machining of a seal member 70 for a rotary machine 10, seal particles from entering a vane cluster 58. Various construction details are developed which increase the effectiveness of the shield assembly. In one embodiment, the shield assembly has an upper shield element 102 having a U-shaped cross sectional shape which fits over a stator assembly 28 that includes the seal member.

Abstract: An apparatus for continuously producing jingling bells includes an upper mold plate and a lower mold plate. The upper mold plate includes a number of punch pins for punching a material web into jingling bells. A cutter is provided on the upper mold plate to cut an iron wire to thereby form a jingling member. The jingling member falls into a flower-like semi-product before closing the flower-like semi product. The lower mold plate includes a rotating wheel rotatably mounted thereto. The rotating wheel includes a number of closing holes for receiving the flower-like semi-product to be closed. An ejection pin provided on the upper mold plate ejects the jingling bell after formation.

Abstract: A drive apparatus for a simultaneous operation machine includes a plurality of pulleys and drive belts in a unique orientation to simultaneously drive a plurality of spindles. A first outer spindle is driven about a first axis of rotation to perform a first operation such as machining. An inner spindle is disposed within the outer spindle and is driven about a second axis which is offset from and parallel to the first axis to simultaneously perform a second operation, such as grinding. Additionally, the drive apparatus is capable of rotating the second spindle about the second axis while orbiting about the first axis, and simultaneously rotating of the first spindle about the first axis. Preferably, a single motor is provided for driving both of the outer and inner spindles.

Abstract: A rotary power tool has a remotely actuated chuck device. A hydraulic actuating system is incorporated in the power tool and is configured to move the chuck device between the gripping and release positions upon hydraulic fluid being supplied to at least one hydraulically driven actuator mounted relative to the tool casing and engaged with the chuck device to move the chuck between gripping and release positions.

Abstract: A cutting insert is formed with a substantially hexagonal cutting face having six sides forming three main cutting edges and three auxiliary cutting edges alternating with the main edges. Each of the main cutting edges is substantially straight and each of the auxiliary cutting edges is outwardly convex. A plateau is on the face inward of the cutting edges and defines a plane. Respective free surfaces each extend generally perpendicular to the plane from the cutting edges and meet at corners between the edges. The main cutting edges are usable for roughing and the auxiliary cutting edges for finishing. The insert is formed on the face along an entire length of and parallel to each of the cutting edge with a respective groove.

Abstract: A method of boring a plurality of aligned, mating bolt holes in a pair of separated coupling flanges comprising the steps of:a) providing a template with pre-formed holes matching a desired location for bolt holes in the pair of coupling flanges;b) securing the template to a first of the pair of coupling flanges;c) attaching a boring tool to the template in alignment with one of the bolt holes;d) re-boring one of the bolt holes in the first coupling flange and repeating steps c) and d) for each remaining bolt hole individually in succession;e) removing the boring tool and template from the first coupling flange;f) relocating the template on the second of the pair of coupling flanges; andg) repeating steps b) through e) for the bolt holes in the second coupling flange.

Abstract: In a modular system (10), with a holder part (12) for clamping in a spindle of a turning machine and a machining tool (14) attached interchangeably to this, the machining tool (14) has a hollow cylindrical shaft part (18) which overlaps a receiving mandrel (20) on the holder part (12) and is fixed to the holder part (12) by means of a screw device (28, 30) mounted on the holder part (12) and generating a tension or compression force via a tension or compression rod (22) running through the holder part (12) and the receiving mandrel (20). The end of the tension or compression rod (22) facing the machining tool (14) is expanded and under the effect of the tension or compression force leads to an expansion of the receiving mandrel (20) such that the peripheral surface (42) of the receiving mandrel (20) and the inner surface (44) of the shaft part (18) are clamped against each other to form a friction connection.