Abstract: A pulse generation means that generates a pulse each time an XY movable member moves linearly by a certain amount relative to a base is provided. A workpiece and a light and dark pattern member are provided on the base. A tool, a light and dark pattern scanning sensor that scans the light and dark pattern and outputs a scanning signal, and a cutting means that moves the tool with respect to the workpiece in a cutting depth direction, orthogonal to the linear motion direction, are provided on the XY movable member. While the XY movable member moves relative to the base, the tool is moved by the cutting means in accordance with a logical AND operation performed on the scanning signal from the light and dark pattern scanning sensor and the pulse from the pulse generation means to perform machining.

Abstract: A connecting device for connecting a shank 16 to a measuring probe 18 is disclosed, to enable the probe 18 to be incorporated on a machine tool for the purpose of tracing a contour of a model. The device includes first and second parts (20,22) connected to the shank and the probe respectively, retained together by a connecting bolt 50 which is spring-loaded by means of Belville washers 56. An arm 60 extends from the second part to engage the housing 14 of the spindle 10, and thereby prevent rotation of the spindle shaft 12. In the event of accidental spindle start-up the two parts 20,22 may rotate relative to each other (the shank rotating with the shaft 12); a thrust bearing 42 enabling sliding of the two parts.

Abstract: A method of setting a tracing zone in a contour tracing in which a surface of a model is traced by a contour tracing to thereby machine a workpiece. The contour tracing zone is set by a plurality of straight lines forming a polygonal shape (43, 44, 45), and when a stylus (5) reaches the straight lines forming a polygonal shape line (43, 44), pick feed is carried out to thus machine the workpiece by a contour machining. Because a tracing zone in the contour tracing is set by a plurality of straight lines forming a polygonal shape (43, 44, 45), the necessary contour tracing zones can be precisely set and therefore, unnecessary machining time is eliminated and life and so on of tools is prolonged.

Abstract: A machine for grinding the peripheries of ophthalmic lenses to predetermined outlines is characterized by a head having a rotatable workholder for moving an edge of a lens against a rough grinding or finishing wheel and a pattern holder positioned vertically above the workholder for controlling movement of the lens toward and away from the grinding wheel. The head is mounted for horizontal, vertical and pivotal movement, is allowed to freely pivot during finishing or bevel edging of a lens but not during rough grinding, and is automatically locked against pivotal movement upon completion of bevel edging so that the lens may, if required, be returned to the same position against the finishing wheel.

Abstract: The present disclosure is directed to an apparatus for simultaneously measuring and cutting 4.times.8 panels of sheetrock having a measuring unit which has a stylus supported thereon for both vertical and horizontal movement to trace out the outline from a ceiling or wall of a panel of sheetrock to be cut directly form the wall or ceiling upon which the panel is to be installed. The cutting unit has sawing means mounted thereon for both vertical and horizontal movement positionable over a stack of 4.times.8 sheetrock panels. Electrical means connects the measuring unit to the cutting unit so that the sawing means on the cutting unit cuts a 4.times.8 panel of sheetrock both vertically and horizontally simultaneously as outlined by the stylus of the measuring unit outling the area to be paneled.

Abstract: An arrangement is used for the efficient mass production of individual bodies for the artificial rebuilding of teeth, for example. The arrangement comprises a first pair of co-rotating elements, of which the first element (1) is so arranged as to support a replica (21) of a body which is to be produced, and the second element (2) is so arranged as to support a blank from which the body is to be produced. The replica and the blank are caused to rotate synchronously about the axis of rotation (3, 4) of the respective element. In a second pair of elements a third element supports a sensing device (31) which is capable of interacting with the external contour of the replica, and a fourth element supports a tool (52) by means of which the blank is capable of being machined. The first and second pairs of elements are capable of being displaced relative to one another.

Abstract: An intelligent tool system used with computer numerical controlled machining centers consisting of an internal spindle machanism and a variety of spindle mounted devices.The spindle mechanism provides CNC communicating and operating means with spindle mounted devices such as; telescoping tool holders for determining work surface locating with random length tools and for sensing tool condition; automatic boring tools for high precision boring and contouring; probing devices for work surface location, measurement and definintion; combination boring and probing tools for boring and measuring a hole without removing the tool from the spindle.

Abstract: A probe having a stylus spindle mounted in a machine tool for locating an object in relation to the stylus measurable along two axis perpendicular to the centerline of the stylus or in the plus and minus direction parallel to the center line of the stylus. The probe provides a discreet signal on contact or a signal level proportional to deflection of the stylus through interfacing with the machine computer numerical control by a machine mounted transducer unit.

Abstract: A clamp profiling control method in which a profiling feed operation, a profiling starting point return operation and a pick-feed operation are performed alternately, and in which a clamp feed is performed at a set clamp level (LCZ), which method includes specifying a clamp region (H1) by storing an initial position (A) at which clamp feed is performed and a position (B) at which clamp feed is no longer performed during the course of profiling feed, executing repetitive clamp profiling control within the clamp region while changing the clamp level (LCZ) and, when the clamp feed is no longer performed even once in the course of clamp profiling control, setting the clamp level to an initial value and proceeding to the next profiling region where the profiling feed operation, profiling starting point return operation and pick-feed operation are performed.

Abstract: A device imparts a predetermined motion to an object by using a cam. The device comprises a load compensator disposed at any desired position in a driven section and adapted to apply a force or torque to the driven section in order to counterbalance variations in the force of contact between a cam and a cam follower. The variations are caused by the movement of the driven section. The force of contact is maintained at a constant value, and enables the achievement of stabilized high-precision motion of the cam driven system, particularly the achievement of high-precision high-speed machining of the lead on a VTR lower cylinder by using an end cam.

Abstract: A method of adjusting for a shift of the position of a stylus tip and a deviation of the zero point of a displacement detector which are caused by an exchange of a stylus of a tracer head. The shift of the position of the stylus tip and the deviation of the zero point of the displacement detector are electrically or mechanically read out as displacement. In accordance with the displacement, the tracer head assembly is moved relative to a machine frame to adjust the tip of the stylus to its reference position.

Abstract: A tracer control system which performs tracer control based on a displacement signal from a tracer head tracing the surface of a model and is equipped with the function of freely setting the infeed of a cutter for machining a workpiece. The tracer control system is provided with a first drive system for feeding the tracer head in the Z-axis direction, a second drive system for feeding the cutter head in the Z-axis direction, first and second position detectors for detecting the positions of the tracer head and the cutter head in the Z-axis direction, and a superimposing circuit for superimposing on each other a position detection signal from the first position detector and an infeed command signal for setting the infeed of the cutter head. The cutter head is fed by the second drive system in the Z-axis direction so that the difference between output signals from the superimposing circuit and the second position detector may be reduced to zero.

Abstract: A machine tool including a tool holder supporting a boring tool and receivable in a tool spindle. A device is provided in the tool holder for adjusting the radial position of the boring tool by utilizing rotation of the tool spindle. A contact detecting head with a known predetermined diameter is secured to the tool holder in co-axial relationship therewith. A contact detecting device detects the contact between a workpiece bore and the contact detecting head. A bore diameter measuring device measures a diameter of the workpiece bore by causing relative movement between the contact detecting head and the workpiece from a first position to a second position wherein at each of the first and second positions the contact detecting head contacts the workpiece, along a path passing through the center of the workpiece bore. The tool spindle is rotated in response to the measuring device to adjust the radial position of the boring tool.

Abstract: A device comprised of a work table, tracing device and cutting device positioned above the table. The work table is capable of holding a workpiece to be cut and a model which serves as a basis for cutting the workpiece to a form identical to that of the model. The tracer includes a spindle and a stylus connected to the bottom of the spindle. The stylus moves against the outer edge of the model and, as it moves, causes the spindle to incline from side to side and displace vertically. Sensors are positioned about the spindle to monitor its movement. The sensors sends signals to the cutter so that the movement of the cutter mirrors the movement of the stylus over the model.

Abstract: Copying-Milling apparatus comprising detectors which detect amounts of displacement of a tracer, a drive device for adjustment which subjects a cutter or the tracer to positioning separately from a motion concerned with the detectors, and control devices which actuate the drive device for adjustment by amounts corresponding to the detection values, so that the motion at the copying-milling is controlled into a motion with a required amount of expansion or contraction taken into consideration.