Abstract: The invention relates to a method for machining a toothing that is chamfered on a tooth head front edge, in which a material projection resulting on said tooth head front edge chamfer, caused by chamfer formation on a tooth front edge of the toothing by means of plastic deformation, and/or caused by removing a primary/secondary burr produced on said end face during production of the toothing and, if applicable, formation of the tooth front edge chamfer, is removed in a rotational operation by a machining procedure with a machining tool that has a cutting edge.

Abstract: A method and machine tool for machining a workpiece on the machine tool comprising at least 5 axes with a tool by using an NC program, the machine tool comprising a clamping means for clamping a workpiece and a work spindle including a tool holding means for holding a workpiece, where the workpiece is clamped on the tool holding means of the work spindle of the machine tool, the tool is clamped in the clamping means of the machine tool, and the workpiece clamped in the tool holding means of the work spindle is controlled in a program-controlled manner in relation to the tool clamped in the clamping means for removing material from the workpiece.

Abstract: An object is to increase precision in straightness on a journal thrust surface relative to the outer peripheral surface of the journal in a crankshaft, and in the control system for controlling the movement of a cutter in axial directions by running a control program transferred from an automatic programming apparatus, the automatic programming apparatus is provided with a machining data correcting means for correcting machining data on the basis of the data for correcting the straightness gained through comparison between the results of measurement of the machining dimensions of the journal thrust surface in the workpiece on which a cutting process has been carried out in advance and the target machining dimensions for the journal thrust surface; and a program preparing means for preparing a control program on the basis of the corrected machining data after correction of the machining data using this machining data correcting means.

Abstract: A process is provided for manufacturing a ball and socket joint that has a ball pivot (2) that is composed of a pivot pin (3) with an essentially spherical ball head (4) arranged or made integrally in one piece on one side. A bearing shell (5) is provided as well as a preformed plastic film as a thin-walled ball socket (7) with a joint surface (8) enclosing the ball head at least partially. A lubricant (9) is introduced between the surface of the ball head (4) and the joint surface (8) of the thin-walled ball socket (7). According to the process, the thin-walled ball socket (7) is filled first with the lubricant (9). The ball head (4) of the ball pivot (2) is then introduced into the thin-walled ball socket (7) filled with lubricant (9), and the ball head (4) provided with the thin-walled ball socket (7) is subsequently introduced into the housing (10). Finally, the free space between the thin-walled ball socket (7) and the housing (10) is filled up with a material to form a bearing shell (5).

Abstract: Airfoil blades are machined in a workpiece using a circular machining tool defining a machining ring having inner and outer circumferential surfaces. The airfoil blades are created by generating engagement movements between the rotating circular machining tool and the workpiece so as to define a concave side of an airfoil with the outer circumferential cutting surface of the machining ring and a convex side of an adjacent airfoil with the inner circumferential cutting surface of the machining ring.

Abstract: The invention relates to an automatic machine for shaping spectacle lenses, especially those in shatterproof material, with a bevel that serves to hold the lens in the frame. Lenses are copied from a pattern by three cutters which correspond to the three types of conventional bevel in current use; a positioning device stations the lens opposite the cutter giving the requisite bevel. Further devices adjust the position of the bevel in relation to the outer edge of the lens, and ensure that it follows the curvature of the individual lens while remaining at the right distance from the edge. The machine is a copier, and as such, utilizes a tracing mechanism for reproduction from the pattern lens; cam control is adopted for scaling the size of the copied lens up or down in relation to the pattern.

Abstract: The process described herein produces a cam which has a cam lobe having opposite sinusoidal surfaces which have at least two rises and at least two dips in 360.degree. of each sinusoidal surface with the rises in one such surface being opposite to the dips in the other such surface. These sinusoidal surfaces are designed so that they may be in full, centerline contact with pairs of bearings attached to connecting rods, these bearings being on opposite sides of the cam lobe and at one time being driven in one direction by one of the two pistons in each pair and then at another time in the opposite direction by the other piston in that pair, the two pistons of that pair being connected to each other by the same connecting rod carrying the bearings which are adapted to press against the cam lobe. The surfaces of the cam lobe are designed to avoid friction or binding between the bearings and the cam lobe. An engine for which this cam is particularly useful is described in applicant's U.S. Pat. No.

Abstract: The apparatus described herein is capable of producing a cam which has a cam lobe having opposite sinusoidal surfaces which have at least two rises and at least two dips in 360.degree. of each sinusoidal surface with the rises in one such surface being opposite to the dips in the other such surfaces. These sinusoidal surfaces are designed so that they may be in full, centerline contact with pairs of bearings attached to connecting rods, these bearings being on opposite sides of the cam lobe and at one time being driven in one direction by one of the two pistons in each pair and then at another time in the opposite direction by the other piston in that pair, the two pistons of that pair being connected to each other by the same connecting rod carrying the bearings which are adapted to press against the cam lobe. The surfaces of the cam lobe are designed to avoid friction or binding between the bearings and the cam lobe. An engine for which this cam is particularly useful is described in applicant's U.S. Pat.

Abstract: A machine for manufacturing a templet for edge grinding a spectacle lens according to the shape of an opening in a spectacle frame designed to hold the lens, comprises a spectacle frame holder supported on a housing. A copying sensor is mounted on the housing for rotation about the axis of the opening and for rectilinear displacement, the sensor sensing the shape of the opening upon rotation thereof. A blank holder is rotatable synchronously with the sensor and a sliding carriage is mounted on the housing for rectilinear displacement with respect to the blank holder, the sliding carriage carrying a cutting tool for cutting the blank to provide said templet. A plunger is rectilinearly displaceable with the copying sensor and synchronously controls the rectilinear displacement of the sliding carriage and cutting tool, the plunger having an axis extending in the direction of the axis of the spectacle frame opening.

Abstract: In a plastic lens grinding machine of the type having a head mounted on a base and adapted to carry a lens pattern and a plastic lens having a base curvature, the head is capable of movement parallel to the axis of rotation of the plastic lens. A carriage is mounted on the base and is movable perpendicular to said axis of rotation, with the carriage having an improved rotatable cutter with a cutting edge made of a metal of high hardness and adapted to be rotated at high speed in order to be self-coolant. A hydraulic damper is mounted on the carriage and connected to the base for regulating the gravitational movement of the carriage towards the axis of rotation of the plastic lens, thus regulating the engagement of the metallic cutter blade with the periphery of the plastic lens. An improved bevel aligning device is provided having a base curve cam connected to the head and a cam tracer connected to the carriage, with the cam having a surface forming the same base curvature as the plastic lens.

Abstract: A machine forming teeth about the periphery of a round blank which has two faces at an angle to each other, and a peripheral edge. The teeth are to appear at both faces and the edge. A single rotary tooth cutter is given a single path to cut each tooth and is controlled by a template to cut one side face, the edge, and the other side face seriatim in one continuous pass. A cam is used to impel the cutter and its drive shaft along its path.

Abstract: The invention provides apparatus and a method for use in machining cam profiles, and is suitable for use in grinding, milling, turning or otherwise forming cams. A workpiece, i.e. a cam blank, is rotated adjacent a machine tool (e.g. a grinding wheel) and is moved relative thereto laterally of its axis of rotation so that stock is removed from the workpiece to form a predetermined cam profile thereon. At the same time, the angular displacement of the workpiece relative to a datum is continuously monitored and the rotational speed of the workpiece is varied in dependence on its instantaneous angular displacement so that the stock can be removed at a substantially constant rate, preferably defined by a predetermined program corresponding to the particular cam profile to be machined on the workpiece.

Abstract: A template cutting device suitable for transferring onto a rotatable plain unworked template the lateral profile of a shaped sample piece that passes substantially perpendicularly to the device, which is specially suitable for use in machines which make shaped pieces in general and in which the profile is reproduced on a control cam or template. The purpose of the device is to manufacture control cams or templates and the like. The device includes structure for sensing the profile of the shaped piece when the former is moving crosswise to the latter; and a working group suitable for processing the plain, unworked template so as to obtain the control cam or template, whereby the forward movement of the sample piece controls the rotation of said unworked template.

Abstract: A plate cam and movable cam follower are disposed in a profile milling machine to reduce the costs of manufacturing the cam and improve the quality of the product.

Abstract: An apparatus and method for performing conic sectional operations on a workpiece is disclosed. The apparatus includes a conic surface generator which traces the surface of a cone and a cutting plane generator which traces a plane so that the plane intersects the surface of the cone. The conic surface and the cutting plane generator are connected by a conic section follower which traces the intersection of the cone and the plane. The apparatus also includes a working interface for working on a workpiece and connecting means for connecting the working interface to the conic section follower so that the working surface traces a conic section equivalent to that generated by the intersection of the cone and plane.A center of curvature guide accurately positions the working interface to provide the capability of substantially single point contact cutting and polishing.