| Patent Number |
Title Of Patent |
Date Issued |
| 5310331 |
Injection molding machine with a mold core drive apparatus |
May 10, 1994 |
| In a core drive apparatus for an injection molding machine, a servomotor is used as a drive source to drive movable cores which, in conjunction with mold parts, define molding cavities. The servomotor is connected to a control device for controlling the drive of various injection molding |
| 5309369 |
Operating state monitoring method for injection molding machines |
May 3, 1994 |
| A monitoring method capable of properly collectively managing the operating states and operation records of a group of injection molding machines. Monitor data sets delivered from the individual injection molding machines are cyclically detected by means of a processor of a monitor unit, |
| 5309367 |
Pitch error compensating system |
May 3, 1994 |
| A pitch error compensating system compensates for a pitch error of a ball screw of a numerically controlled machine tool. A pitch error calculating means (4) reads a present value from a present value register (3), reads pitch error corrective quantities (.epsilon.n, .epsilon.pn) in a |
| 5309364 |
Trace control method |
May 3, 1994 |
| In a trace control method used for machining a workpiece by tracing a model with a tracer head, the path and speed of two axes (X- and Y-axes) are controlled by NC commands, but, three axes (X-, Y- and Z-axes) are controlled to carry out the tracing operation. An NC command speed (F) is |
| 5308951 |
Laser beam machine |
May 3, 1994 |
| A laser beam machine capable of preventing contaminants from entering a machining head. A laser beam (2) is reflected by a mirror (4) in a light guide passage (12) and introduced into the machining head (5). The laser beam is then focused by a parabolic mirror (6) to be irradiated onto a |
| 5307367 |
Laser oscillating apparatus |
April 26, 1994 |
| A laser oscillating apparatus equipped with a folded-type laser resonator designed to fold an optical axis by using a reflecting mirror (11) in addition to an output coupling mirror (4) and a rear mirror (10). The rear mirror (10) consists of a roof reflector having a ridge (10a) set at |
| 5305228 |
Tool axis direction calculation method |
April 19, 1994 |
| A tool axis direction calculation method for determining a direction vector of the tool axis when a side is cut be a 5-axes numerically controlled machine tool. A normal vector (Ri) is determined at a dividing point (Pi) of the upper surface of a sculptured surface, and a normal vector ( |
| 5304906 |
Collision detecting method using an observer |
April 19, 1994 |
| A collision detecting method for quickly securely detecting a collision between a driven body driven by a servomotor and an obstacle by using an observer, thereby preventing machine components from being damaged by the collision. An estimated distrubance torque (y) is obtained in accorda |
| 5302876 |
Rotor of synchronous motor |
April 12, 1994 |
| A rotor of a synchronous motor incorporates a rotor core assembly 14 including a rotor core 10 formed by a lamination of ferrosilicone plates and a plurality of permanent magnets 12 arranged on the outer periphery of the rotor core 10. The rotor core assembly 14 is formed by coaxially |
| 5300868 |
Robot teaching method |
April 5, 1994 |
| A operation program of a robot is simply changed by using a workpiece body without using a master body. The operation program of the robot is corrected by correction data obtained from cameras. When a point of the operation program is desired to be changed to another point, a point on |
| 5299477 |
Method of selecting a tool in a punching press machine |
April 5, 1994 |
| In a method of tool selection control for a punching press machine equipped with a multi-tool holder, a tool selection instruction (1) consisting of 4-digit T codes such as (T1101) associated with a first punch tool (42a) of the multi-holder (42) is read from a machining program. A holde |
| 5299114 |
Sequence program search method |
March 29, 1994 |
| To improve searching for a net in the sequence program of a programmable controller (PC), a mark is set for a desired net (10a, 10b). Each time a forward operation key (13d) is depressed, a next (forward) net with a mark is searched for and displayed. Each time a backward operation key ( |
| 5298843 |
Method for restarting punch press machine and numerical controller |
March 29, 1994 |
| The present invention allows easy restarting of a multiple product machining function in interrupted punch press work. An interrupted machining position is identified with a product number set on a work and a product number of a product for which machine operation is stopped or a pro |
| 5298006 |
Machining method of punch press machine |
March 29, 1994 |
| Disclosed is a machining method of a punch press machine by which a moving time of a workpiece table is excluded in a punch press machining to improve an operation efficiency. When the punch press machine is commanded to execute a machining for punching a multiplicity of products, a cust |
| 5297023 |
NC data editing method using transformation matrix and conversion command |
March 22, 1994 |
| An NC data editing method speedily and accurately edits NC data, e.g., for modification of the movement path of a controlled object. When three positional conversion command blocks are successively read from original data in a data conversion process following a data modification process |
| 5296671 |
Piping arrangement for a laser robot wrist |
March 22, 1994 |
| A piping arrangement in which a plurality of sealing means (70 through 78) are arranged on a sheathing pipe (42) provided as an outer pipe of a robot wrist (18) of a laser robot to thereby define annular chambers (84 through 90); the annular chamber (86 and 90) being used as a gas-carryi |
| 5296179 |
Method and apparatus for monitoring injection pressure |
March 22, 1994 |
| A method and an apparatus for monitoring injection pressure, using the relationship between positions of a screw (1), filling of resin in a cavity and injection pressure. Mold cavity data are stored, whereby a display screen (2) displays, based on said data, a configuration of the ca |
| 5292224 |
Apparatus for holding stacked workpieces and feeding the same |
March 8, 1994 |
| An apparatus for holding a plurality of workpieces (W) in a stack on a pallet (22), supporting the workpieces (W) in place on the pallet (22) by a plurality of workpiece support rods (26), and transporting and transferring the uppermost workpiece by a workpiece gripping hand (50) pro |
| 5292066 |
Sealant flow control method in sealing by an industrial robot |
March 8, 1994 |
| A sealing gun (31) of a sealant application unit, which controls the flow of the sealant in accordance with the value of an input signal, is attached to the end of a robot arm. The value of a signal applied to the sealant application unit (30) is controlled in association with accele |
| 5289367 |
Numerical control apparatus using fuzzy control |
February 22, 1994 |
| A numerical control apparatus for adaptively controlling a servo apparatus, wherein a load current (Ln) and a velocity (Vn) of a spindle motor (74) are used as a fuzzy input. In response to the fuzzy input, a fuzzy control means (80) effects a fuzzy inference to output a velocity control |
| 5285457 |
Apparatus for detecting an abnormal bearing condition of a blower utilized for gas laser equipme |
February 8, 1994 |
| The present invention relates to an apparatus for detecting an abnormal bearing condition of a blower utilized for gas laser equipment, and the purpose of the invention is to immediately find abnormal bearing conditions of the blower as a result of lubrication failures. The apparatus |
| 5283750 |
Automatic editing method for polyhedron machining processes |
February 1, 1994 |
| To embody a method for automatically editing multi-faced polyhedron machining processes in a manner capable of efficiently operating a machine tool, a processor of an automatic programming apparatus causes a first one of definition statements associated with upper face machining to be |
| 5283509 |
Tracing control system |
February 1, 1994 |
| A tracing control system machines a workpiece to a desired contour corresponding to the surface of a model which is being traced. The tracing control system comprises a tracing control circuit, a digitizing circuit, and numerical circuits. The tracing control circuit controls a plurality |
| 5283018 |
Product acceptance/rejection judgement method for an injection molding machine |
February 1, 1994 |
| A product acceptance/rejection judgment method which always ensures accurate judgment whether a product is acceptable or not even when an injection molding machine is operated in different operating environments is implemented by a processor (22) of a numerically controlled device (2 |
| 5282390 |
Industrial robot with means for cooling a linear motion nut and screw shaft |
February 1, 1994 |
| A cooling means for removing heat generated in a portion of a solid ball-and-screw shaft (27) provided for a screw mechanism accommodated in an industrial robot and engaged with a linear motion nut (28) accommodated in the linear motion mechanism. The cooling means permits a cooling |
| 5282144 |
Cylindrical interpolation system |
January 25, 1994 |
| A cylindrical interpolation system for machining a cylindrical surface of a cylindrical workpiece, wherein a tool diameter correcting means (104) obtains a tool center path by calculating a tool diameter offset vector for a machining shape specified with reference to an assumed orthogona |
| 5281903 |
Method for drivingly controlling a variable reluctance type motor |
January 25, 1994 |
| A drive control method for a variable reluctance type motor capable of improving the motor efficiency by preventing generation of a disturbance torque. In function generators (8A to 8C) of a controller for embodying the method, the motor rotation direction and the motor driving mode are |
| 5281787 |
Wire feed device |
January 25, 1994 |
| A wire feed device for a wire cut electric spark machine in which a wire is delivered from a wire bobbin in the direction orthogonal to the axis of the wire bobbin to prevent a "jump" of the wire as well as a fluctuation in wire tension arising from the jump, and which can reduce a space |
| 5279778 |
Positioning correction method for motor-operated injection molding machine |
January 18, 1994 |
| A positioning correction method for a motor-operated injection molding machine, intended to eliminate waste of power supply to or overheat of servomotors by locking up in an ideal state the motor-operated injection molding machine, which uses a toggle mechanism or crank for mold clamping |
| 5278767 |
Method of creating curved surfaces |
January 11, 1994 |
| A curved surface generation method well-suited for application to the preparation of a numerical control tape used in the numerically controlled machining of a three-dimensional body such as a three-dimensional mold. The surface creation method includes steps of defining, on a first sect |
| 5278479 |
Tool path drawing method |
January 11, 1994 |
| A tool path drawing method which facilitates confirmation of the movement of a tool associated with three-dimensional machining, comprising steps of drawing, for example, a cylindrical workpiece figure (1) in a perspective view on a display screen (25a), in accordance with workpiece conf |
| 5276777 |
Locus correcting method for industrial robots |
January 4, 1994 |
| The robot is started after a groove line of a workpiece to be welded is taught to the robot as a target movement locus for the distal end of a welding torch, by using a fixed coordinate system. A control unit of the robot calculates a position (Pi) of an individual interpolation point in |
| 5275768 |
Injection molding condition setting method |
January 4, 1994 |
| An injection molding condition setting method capable of setting optimum molding conditions quickly and easily. A processor (12) of a control device furnished with an expert system, which includes a state table containing a plurality of states each composed of a combination of mold i |
| 5274563 |
Noncontact tracing control system |
December 28, 1993 |
| A noncontact tracing control system for tracing machining a workpiece through a tracing of the contour of a model without contact. Coordinate values of a plurality of points on the model surface are acquired from measured values obtained by a plurality of times of sampling from two n |
| 5274546 |
Diagnosis system of numerical control apparatus |
December 28, 1993 |
| Disclosed is a diagnosis system of a numerical control system (CNC) for monitoring an internal state of the CNC, wherein a processor (11) of the CNC acts as a host processor, and a diagnostic processor (1) monitors the processor (11) for the CNC or other processors (18a, 24) in a usual C |
| 5274360 |
Method of detecting positional dislocation of camera |
December 28, 1993 |
| A fixed point for confirmation is photographed by a camera prior to the start of a robot job, to obtain photographing data (S1, S2), a position data is determined from the photographing data (S3), and an error (.DELTA..epsilon.) between the position data and a reference position data |
| 5270940 |
Contour configuration machining method |
December 14, 1993 |
| A contour configuration machining system of an interactive numerical control apparatus is provided for carrying out a machining operation by a lathe by programming a predetermined contour configuration based on configuration data of straight lines, arcs and the like. A cutting direct |
| 5270918 |
Automatic programming method |
December 14, 1993 |
| An automatic programming method capable of creating NC data for combined machining effectively and accurately. Each time a processor of an automatic programming apparatus reads one block of a past program for combined machining stored in a random access memory, the processor selects |
| 5270632 |
Driving system for an induction motor having a circuit for generating a slip pulse and a phase s |
December 14, 1993 |
| A driving system for an induction motor which is capable of properly controlling the speed of an induction motor over its high-speed revolution range and also features an excellent responsiveness to a speed command. In this system, a slip pulse (SSP) and a phase shifting pulse (FSP) are |
| 5267483 |
High-density installation type robot |
December 7, 1993 |
| A high-density installation type robot able to be installed side by side with another such robot, to work on an object at the same time is provided. A robot wrist assembly (30) is equipped with three rotary axes (.alpha. axis, .beta. axis, .gamma. axis), and a robot arm (26) having the |
| 5267142 |
Method for phase-synchronized spindle rotation control |
November 30, 1993 |
| A spindle rotation control method is provided capable of driving two spindles of a machine at the same speed with the same rotational phase. In response to a synchronizing control command from a numerical control apparatus, speed control is performed based on first and second speed c |
| 5266811 |
Digitizing control equipment utilizing normal vector calculations and a position sensor |
November 30, 1993 |
| A digitizing control device which is inexpensive and capable of generating a normal vector representing the direction of a normal line to a model surface on a real-time basis by a light-section method, wherein a table (31), on which a model (6) is placed, is horizontally moved relative t |
| 5265027 |
System for controlling three-dimensional coordinate transformation |
November 23, 1993 |
| A three-dimensional coordinate transformation control system controls three-dimensional coordinate transformation in a computerized numerical control apparatus for controlling a machine tool having a plurality of heads. A pre-processing calculating unit (2) decodes a machining program |
| 5260879 |
Numerical control apparatus |
November 9, 1993 |
| Disclosed is a numerical control apparatus for controlling a numerically controlled machine tool such as a hobbing machine and the like. An axis control circuit (14) provided with a synchronization control means (8) controls the rpm of a spindle motor (5) and the rpm of a servo motor (11 |
| 5260630 |
Numerical control apparatus |
November 9, 1993 |
| A numerical control apparatus for independently controlling the rotational velocity of a plurality of spindles. One or more spindles and one spindle rotational velocity are designated by NC data outputted by an NC data generating unit (1), the data in memories (3a-3n) corresponding to |
| 5259748 |
Article conformity discriminating apparatus for an injection-molding machine |
November 9, 1993 |
| An article conformity discriminating apparatus for an injection molding machine is capable of automatically discriminating the conformity of articles with accuracy without using a conforming article sample. In molding cycles for mass production of articles executed according to optim |
| 5258905 |
Expanded programmable machine controller |
November 2, 1993 |
| An expanded programmable memory controller (PMC) is provided outside a numerical control device and connected to a main body programmable machine controller (PMC) which is inside the numerical control apparatus. The expanded programmable machine controller has a first sequence program, a |
| 5253140 |
Connector unit for input/output module of programmable controller having disengagement lever |
October 12, 1993 |
| An I/O unit has a fixed unit such as a housing provided with a multiplicity of connection terminals and an LED display module unit. A mounting/dismounting unit is provided with a terminal block including connection terminals to be coupled with the connection terminals of the fixed un |
| 5252899 |
Numerical control system |
October 12, 1993 |
| A numerical control system for controlling a plurality of axes with a plurality of functional arrangements includes a controller bus (1) having a plurality of slots, a plurality of controllers (10, 20, 30) each of which can read, decode, and execute numerical control commands for a group |
| 5252805 |
Laser beam machining method |
October 12, 1993 |
| A laser beam machining method for cutting a workpiece in accordance with a machining program composed of a succession of move commands and laser output commands. An angle of a machining path is calculated on the basis of a move command under execution and a subsequent read out move comma |
