Matches 301 - 350 out of 545 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
5140238 Robot control apparatus  
A robot control apparatus includes a sine wave signal-outputting device, an operating device, a command device for outputting a current value, a substracting device, an electric power amplifying...
5140237 Computerized numerical control method  
A CNC method controls a plurality of paths with a single computerized numerical control apparatus. In the CNC method, an order (6) in which to execute part programs (5) for the respective paths (4)...
5126646 NC program drawing method  
An NC program drawing method for an interactive numerical control device is provided, in which an NC program is represented by a composite drawing composed of a solid drawing (1a, 1b, 1c) and a...
5124621 Reference point return system  
A system is provided for carrying out a reference point return in a numerical control device. A deceleration dog (31) is arranged at a machine table (1) and includes a reference point (4). A...
5124622 Remote diagnosis system of numerical control apparatus  
A system for a remote diagnosis of a numerical control apparatus (CNC), for remotely diagnosing a failure of the CNC. A personal computer is operated by a service engineer and a remote operation...
5122717 Apparatus for producing NC programs using menu icons to define operations and producing method thereof  
An apparatus for producing a numerical control program, which uses a unit motion pattern icon. A menu memory unit stores a menu of unit motion patterns corresponding to subdivided machine motions,...
5121040 Positioning control apparatus  
A positioning control apparatus comprises a plurality of servo mechanisms corresponding to respective axes, a sequence operation part for successively outputting start commands for the respective...
5119004 Reference-point return method  
The invention relates to a reference-point return method for returning a movable element of a machine to a reference point using solely a linear scale, without relying upon a limit switch. The...
5115180 Automatic drift compensation method and device for position-loop controller  
By means of a timer and by setting the compensation for the lag error, the correctness of automatic drift compensation in a position-loop controller is enhanced and the accuracy of position control...
5111125 Automatic mirror repositioning  
A "memory" mirror system having a mirror 19 mounted within convex-shaped mirror movement boundaries, two constant speed motors 16,18 each controlling an axis of mirror movement, position feedback...
5107436 Method for generating a tool course for a cutting tool  
A method for determining a smooth machining course for a cutting tool during machining of a workpiece. Each possible cutting tool position, with respect to the workpiece, is defined by a separate...
5103150 Involute interpolation error correction system  
An involute interpolation error correction system for correcting an error attributable to an involute interpolation of a numerical control device or the like. When machining is effected in...
5095258 Longitudinal motion error compensation apparatus method and apparatus for multiaxis CNC machine  
A table for use with CNC machines has section one table feature being mounted for movement on the base and the other table section being mounted on the one table section. The table means are...
5091860 Numerical control device including tapping pitch data group memory  
A numerical control device used in conjunction with a machine tool including a spindle head having a plurality of tapping tools is provided with a tapping pitch data group memory which stores the...
5084660 NC command system  
Disclosed is an NC command system of a CNC lathe having a plurality of tool posts, the position of which can be independently controlled, and a plurality of spindles an rpm of which can be...
5083071 Spindle control system  
Disclosed is a spindle control system of a numerical control apparatus capable of independently controlling a plurality of spindles by a plurality of paths. Connecting relationships between...
5081407 Numerical control apparatus  
A numerical control apparatus according to the present invention is such that when a machine tool using a spindle motor (5) is commanded to perform a reference-point return operation and positional...
5081408 Digital servo-control system  
The present invention relates to a digital servo-control system whose purpose is to control very high precision equipment. The system includes two digital-to-analog converters, one of which is...
5079490 Spindle drive system of machine tool  
A spindle drive system of a machine tool, wherein a control mode changeover section of a control unit selects one of both a speed control mode for controlling a rotational speed of a spindle...
5077507 Servo control apparatus  
A servo control apparatus comprises an abnormality detection circuit which calculates a difference between the quantity of rotation of a servo motor from a reference point calculated on the basis...
5073748 Method for limiting the rate-of-change of acceleration in numerical driving systems  
A numerically-controlled driving system has a rate-of-change limiter that is applicable to positioning- and continuous-path-control systems as used in robots, machine tools, elevators, etc. When...
5070287 Method for a numerical positioning control system  
A numerical positioning control system renders possible clocked-synchronous acceleration, and deceleration operations for motorized driving systems (A). A specified target point (PO), which for...
5068585 Numerical control device  
A numerical control device capable of controlling the drive of a plurality of objects to be controlled in a parallel mode. With a numerical control device, machining programs for the objects which...
5059881 Numerical control apparatus having a backlash compensation function and method thereof  
Backlash compensation for a numerical control apparatus. Backlash compensation is intelligently applied based on a judgment as to a change in direction or velocity commanded for a cutting tool,...
5057756 Acceleration/deceleration control apparatus for servo control  
An acceleration/deceleration control apparatus for servo control is provided, which is capable of securely restraining vibration of servomotors for use as drive sources for various machines. The...
5043644 Machining program correcting method  
A method of correcting a machining program for a numerical control device during an execution of the program is provided. A created machining program, which is stored in a memory (5), is executed...
5030900 Spindle orientation control apparatus  
A spindle orientation control apparatus according to the invention provides a spindle (4) for which a magnetic sensor senses the spindle and outputs stopping-position proximity (LS) signal and a...
5025200 Synchronous control system  
Disclosed is a synchronous control system for effecting a synchronous and superimposed operation among different channels of a multi-channel-control machine tool. A follow-up error amount (ε3) of...
5012169 Motor drive system  
A motor drive system used with industrial robots, processing machines, and the like comprising an external interface part ready for connecting a plurality of kinds of host controllers generating a...
5010286 Method of synchronous control of spindle motor and feed motor  
When a spindle (10) of a machine tool is rotated and moved relative to a workpiece linearly along an axis (Z) thereof during a machining process such as screw cutting, a spindle servomotor (12) and...
4999554 Method of loading control program for numerical control apparatus  
The present invention discloses a method of loading a control program for a numerical control apparatus, wherein the control program is composed of a plurality of load modules. Each module contains...
4994723 Digital servo system for controlling rotational speed of rotary body  
A microcomputer 1 servo controls a rotational speed of a capstan motor 10 in a VTR in a digital manner. A value of a timer counter 6 is stored in an ICR 7 at a timing of each edge of FG signal...
4992712 Control device for industrial machine  
A control device for an industrial machine comprising a numerical control device and a programmable controller, the numerical control device comprising: a data processing section essentially...
4970449 Numerical control apparatus  
A numerical control apparatus according to the invention has a mode designating interface for deciding a control mode and an interface which receives position and velocity commands, these...
4963803 Numerically controlled machine tool  
An improvement applicable to a multi-axis numerically controlled machine tool for the purpose to enable the means small in capacity. A numerically controlled machine tool provided with plural axes...
4949025 Numerical control method for variably setting positioning accuracy  
A numerical control method makes it possible to perform machining of a workpiece at a high speed with a desired accuracy. After start of pulse distribution, a determination is made as to whether or...
4947095 Expert system of machine tool equipped with NC unit  
Expert knowledge regarding investigation of the causes of various failures, and knowledge for extracting DI/DO information (IOD), which is exchanged by an NC unit (11) and a machine tool (13), as...
4941104 Numerical control apparatus for controlling a threading operation  
An improvement in a numerical control apparatus for controlling a threading operation with a tap. A numerical control apparatus of the present invention which is simple in construction and needs no...
4935681 Involute interpolation method  
An involute interpolation method is provided for machining operations in a numerical control apparatus, in which a rotational direction of an involute curve, a center position of a base circle (C),...
4929878 Memory mirror control system for vehicles and the like  
A mirror control system for electrically powered and positioned mirrors (FIG. 1) of the "memory" type for, for example, moving an automotive side view mirror from its current position to a desired...
4924163 Side support control device for use in a vehicle seat  
A side support control device for use in a vehicle seat in which by an occupant's switch operation a motor is driven to thereby control the operation of a side support so as to prevent the occupant...
4912384 Emergency stop control circuit  
An emergency stop control circuit of a numerically controlled machine tool for controlling emergency stop signals. A relay circuit (1) is provided with input terminals connected to an emergency...
4904911 System for controlling robot  
A system for controlling a robot includes a control portion (7) for supplying a control signal to and receiving a control signal from a servo unit (6) for carrying out a signal supply and a signal...
4894594 Servo system speed control apparatus  
The designated speeds of a plurality of blocks are read beforehand, deceleration start positions are calculated to maintain the servo system at a speed below the designated speeds of the blocks...
4893066 Hybrid sample rate servo motor controller  
A hybrid sample rate servo motor employing rate feedback compensation is disclosed. The system employs a shaft encoder having a predetermined resolution to provide position data which are pulses...
4881021 Numerical control equipment  
A numerical control equipment comprises a control section for applying to a drive motor for driving a table on which an object under measurement is placed a movement instruction for moving said...
4879642 Servo loop processor in association with a central processing unit for closed loop control of a servo system  
A servo loop processor (2) is a dedicated controller for use with a main central processing unit (4) (CPU), through an appropriate interface (8,10) whereby closed loop control of a servo system...
4866360 Cutting process control system for CNC metal cutting machine tools  
The invention relates to optoelectronic instrumentation engineering and, in particular, to cutting process control systems for CNC machine tools. A control system includes an optical transducer (2)...
4859920 Interface system for servo controller  
An interface system for a servo controller has a speed controller (7), a current controller (9), etc., which have heretofore been disposed on the side of a servomotor, disposed in a control circuit...
4853603 Control of an industrial robot  
A method for controlling a working robot which is adapted to grip a workpiece for transporting it to a position where the workpiece is positioned against a working tool to be worked by the tool....
Matches 301 - 350 out of 545 < 1 2 3 4 5 6 7 8 9 10 11 >