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| Number | Title | Issue Date |
| 5173648 | Numerical control method NC programs (11a-11d) are provided for corresponding ones of movable elements for prescribed axes, and the movable elements are moved by performing numerical control processing in numerical controllers (12a-12d) based on the NC programs. A plurality of ax... | 12/22/1992 |
| 4893251 | Method of generating cutting path of complex curved surface Data for specifying each three-dimensional curved surface (12a, 12b, 12c) constituting a complex curved surface (11, FIG. 1) are inputted, and one curve (CV) on the X-Y plane is specified. The curve CV comprises two or more elements (CV1-CV4). The complex... | 01/09/1990 |
| 4794541 | Numerical control method A numerical control method of a numerical control unit according to the present invention includes automatically accessing external memory means 2--2 in a case where a desired NC program does not exist in an internal memory (2--2), reading the desired NC ... | 12/27/1988 |
| 4723203 | Automatic machining process determination method in an automatic programming system A machining process determination method in automatic programming for automatically creating NC data for a lathe. The method includes storing machining processes in a memory in a machining sequence, reading the previously stored machining processes out of... | 02/02/1988 |
| 4704687 | Method for constructioning tool approach and retraction paths from preset patterns A three-dimensional tool path determination method for determining at least one path out of an approach path along which a tool 11 of a machine tool having three or more controlled axes is made to approach a workpiece, and a retraction path along which th... | 11/03/1987 |
| 4700097 | Synchronous machine A synchronous machine comprising a stator (41) having armature windings matching to a $c; phase power source and S number of slots (42) accommodating the armature windings, and a rotor (31) having a number of field poles (32) identical with the P numbe... | 10/13/1987 |
| 4680719 | Method of controlling comb-cutter lathe A method of controlling a comb-cutter lathe in which one face of a tool rest (TBS) is provided with two or more juxtaposed tools (TL1, TL2) for subjecting a workpiece (WK) to machining by using: (1) predetermined tools in succession, (2) part dimensions, ... | 07/14/1987 |
| 4652203 | Hand changing device for industrial robots A hand changing device for industrial robots, having a changer body (10) designed to be attached to the robot arm (92) and a changer adapter (50) carrying a robot hand. The changer body (10) and the changer adapter (50) are separate components designed to... | 03/24/1987 |
| 4628778 | Industrial robot A compact industrial robot for mounting on a lathe includes a traveling body transported along an axis (Z axis) parallel to the axis of a spindle provided on a lathe, a column provided on the traveling body for extending and retracting in a vertical direc... | 12/16/1986 |
| 4618859 | Graphic display unit A graphic display unit having a shifting circuit for shifting a picture image to a designated position on or off a display panel, the shifting circuit including a signal delaying circuit for delaying a divided clock signal obtained by dividing a main cloc... | 10/21/1986 |
| 4617640 | Portable automatic NC programming device An automatic numerical control programming device having a box-like body with a carrying handle and a lid element hinged to the body. The device contains, within the body, a graphic display unit, a floppy deck, an electric processing unit, and controllers... | 10/14/1986 |
| 4614695 | Battery and method of producing same A battery includes ion-permeable sheeting densely filled with carbon fiber or fine carbon particles, and aluminum, zinc, or other metal foil or fine powder, such two members being bonded together with an electrolyte interposed therebetween.... | 09/30/1986 |
| 4610074 | Automatic tool changer of a machine tool An automatic tool changer of a machine tool comprises a spindle head (4) rotatably carrying a spindle (2), and a tool magazine (40) having a plurality of tools (42). A pair of gears (46, 48), one on the spindle and the other on the magazine, are provided ... | 09/09/1986 |
| 4599022 | Clamp profiling control method 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... | 07/08/1986 |
| 4591770 | Numerical controller The present invention is to increase the reliability of a numerical controller by permitting the detection of an abnormality in a position sensing pulse which is output each time a moving part moves by a fixed amount. A position sensor (6) outputs a refer... | 05/27/1986 |
| 4586869 | Industrial robot hand A robot hand to be joined in use to the free end of an industrial robot wrist unit (10) is provided with a right and left work gripping units (28b and 28a) having pairs of work gripping fingers (30b and 30a), respectively, and separately disposed on the r... | 05/06/1986 |
| 4586868 | Wrist mechanism of an industrial robot A wrist mechanism of an industrial robot provided at the extremity of the robot arm (20) and having two degrees of freedom of motion enabling a wrist unit (30) to perform a tilting motion and a swivel motion about two substantially perpendicular intersect... | 05/06/1986 |
| 4583433 | Turning control apparatus and method A method and apparatus for controlling a turning operation in which a workpiece, rotated by a spindle, is cut by a cutting tool transported axially of the spindle in synchronization with the rotation thereof. The rotational speed of the spindle is sensed ... | 04/22/1986 |
| 4580941 | Industrial robot hand-holding device An industrial robot hand-holding device having a hand-holding unit attached to the extremity of the robot wrist, a hand-attaching unit having mounted thereon one of a plurality of diverse robot hands and being detachably attached to the hand-holding unit,... | 04/08/1986 |
| 4565400 | Double hand for an industrial robot A double hand for an industrial robot comprises a hand body, two sets of work clamping units and two sets of actuators to drive the work clamping units, respectively, for opening and closing motions. The hand body has a rear end attachable to the free end... | 01/21/1986 |
| 4551676 | Pulse coder using magnetoresistance elements having an improved z-phase signal pattern A pulse coder comprises a rotating member (1) on which first and second magnetic patterns (221, 222; 221', 222') are formed and a fixed member (3) on which first and second magnetoresistance patterns (MR5, MR6) are formed. When the first and second magnet... | 11/05/1985 |
| 4549846 | Automatic hand changing device for industrial robots A robot hand changer for industrial robots, having a changer unit mounted fixedly on the industrial robots and a changer adapter holding a robot hand and being detachably fitted in the change unit. The changer unit has a fluid-operated piston and clamping... | 10/29/1985 |
| 4546227 | Method of reducing wire-cut electric discharge machining errors A method of controlling a wire-cut electric discharge machine to prevent cutting errors when cutting a corner CN which are caused by flexing of a wire electrode 1 during electric discharge cutting of a workpiece. Electric discharge is stopped when a recti... | 10/08/1985 |
| 4546427 | Method of creating curved surfaces A method of creating the curved surface of a three-dimensional curved body, including steps of entering a section curve of the three-dimensional curved body and partitioning information such as the number of partitions and partitioning pitch, partitioning... | 10/08/1985 |
| 4543506 | Permanant magnet field type rotor structure for an electric machine A rotor structure comprising a shaft and a magnetic pole assembly comprising radially disposed permanent magnets and yokes. The magnetic pole assembly is supported by the shaft through end plates. The end plate has a recess to receive the end of the magne... | 09/24/1985 |
| 4542471 | Robot control system for presetting limit values corresponding to limits of deviation Disclosed is a robot control system of the type in which instructive data taught by means of a teaching box is stored in memory and a manipulator such as a robot hand is actuated in accordance with the instructive data so that the robot is made to execute... | 09/17/1985 |
| 4542327 | Speed control apparatus A speed control apparatus according to the present invention includes a pulse generator for generating a number of pulses proportional to an angle of rotation of a servomotor, a speed signal generator for converting the frequency of the pulses into a volt... | 09/17/1985 |
| 4540332 | Swivel device A swivel device for supporting a swivel unit thereon, including a hollow main frame and a comparatively slender rotatable shaft disposed upright within the hollow frame, connectable to the swivel unit at the upper end thereof and connected to a driving so... | 09/10/1985 |
| 4538084 | Stator of motor Through holes (11, 12, 13 . . . ) are made at predetermined locations of a stator core (1). Reinforcing bars are inserted thereinto while fixed to the stator core by welding (81, 82, 83 . . . ). The stator core is supported between a front bracket (31) an... | 08/27/1985 |
| 4536649 | Photoelectric converter-type pulse encoder In a photoelectric converter-type pulse encoder comprising a light-entrance portion (13, 13'), a rotating slit plate (12) on which a lattice plate receiving light from the light-entrance portion (13, 13') is formed, a fixed slit plate (11) on which a latt... | 08/20/1985 |
| 4534685 | Tracer control system The present invention pertains to a tracer control system for a system performing tracing in an arbitrary direction using a combination tracer control-numerical control unit which is a combination of a tracer control unit and a numerical control unit, and... | 08/13/1985 |
| 4521724 | Apparatus for processing energy regenerated by an AC motor An apparatus for processing the energy regenerated by an AC motor, which comprises a regeneration detection logic circuit (7) that produces a regeneration detection signal when the AC motor driving semiconductor switches are nonconductive and when the dir... | 06/04/1985 |
| 4510367 | Wire-cut electric discharge machine In a wire-cut electric discharge machine the accurate thickness of a workpiece is obtained, on the basis of which electric cutting conditions are automatically changed over. The workpiece and a wire electrode are moved relative to each other through utili... | 04/09/1985 |
| 4510568 | Graphic processing method A graphic processing method in which a processing unit of a graphic input device is constituted by a computer, and a plurality of processing programs are stored beforehand in a memory of a host device. A predetermined processing program in accordance with... | 04/09/1985 |
| 4493083 | System for updating data in bubble memories A data update system in a bubble memory in which, to preserve the simultaneity of data in the event of a power failure during the updating of data in the bubble memory, initialization data is written into a specific data storage area of the bubble memory ... | 01/08/1985 |
| 4485338 | Method and apparatus for sensing current position in position control system A method and apparatus for sensing the current position of a movable element in a position control system which includes first and second control devices each having a command pulse generating means and error storage means for computing and storing an err... | 11/27/1984 |
| 4482854 | Inverter circuit An inverter circuit having a bridge circuit comprising a plurality of switching elements connected in the form of a bridge for converting, into alternating current, a DC voltage produced by a DC voltage generating unit and which is received through a firs... | 11/13/1984 |
| 4482968 | Method and apparatus for robot control A robot control method and apparatus of the type in which robot operations are taught in advance and the robot is subsequently actuated in accordance with the robot instruction data so taught. Areas in which the robot is forbidden to enter are established... | 11/13/1984 |
| 4481588 | Method and apparatus for adjusting installation position of switch members in numerical control system A method and apparatus for adjusting the positions of switch members such as a deceleration limit switch installed on a machine tool in a numerical control system for controlling the machine tool on the basis of numerical control data and for executing pr... | 11/06/1984 |
| 4475160 | Method of sensing abnormal condition in robot control apparatus Disclosed is a method of sensing an overload abnormality in a robot control apparatus for controlling a robot on the basis of instructive data. A motor for driving the robot has the upper and lower limits of its drive current or of its driving power set i... | 10/02/1984 |
