| Patent Number |
Title Of Patent |
Date Issued |
| 7105959 |
Cooling jacket and motor unit with cooling jacket |
September 12, 2006 |
| A cooling jacket for an electric motor and a motor unit with a cooling jacket mounted on an electric motor having simple structure and capable of being manufactured with reduced number of processes. A cooling pipe made of copper and the like is bent, and held by plate members and lid |
| 7105771 |
Torch cable accommodating structure of arc welding robot |
September 12, 2006 |
| A first wrist element is provided at a distal end of a front arm of an arc welding robot rotatably about a first axial line, a second wrist element is provided on the first wrist element rotatably about a second axial line, and a welding torch is supported on the second wrist element abo |
| 7104153 |
Linear element laying structure in relative rotation mechanism |
September 12, 2006 |
| Pipes and/or wires extend in a bundle from a hollow portion of a second wrist element to a hollow portion of first wrist element of a robot. The first wrist element can rotate relatively to the second wrist element around an axis that passes through the two hollow portions. This bundle |
| 7103448 |
Robot system |
September 5, 2006 |
| A robot system capable of performing automatic updating of data inherent to a robot mechanism section or a mechanical unit thereof when changing the robot mechanism section or the mechanical unit. After changing the robot mechanism section or the mechanical unit, data of identifiers are |
| 7101126 |
Cutting force detection method and machining control method and apparatus based on detected cutt |
September 5, 2006 |
| End-mill machining control method and apparatus in which cutting forces tangential and normal to tool motion are detected and machining is controlled based on the detected cutting force values. A primary component Ft and motion axis components Fx, Fy of a cutting force are determined |
| 7098683 |
Motor driving system having power semiconductor module life detection function |
August 29, 2006 |
| In the motor driving system, a unit to predict the separation of the wire is built into the power semiconductor module thereby to predict that the time of separation of the wire is approaching before the actual separation of the wire. Thus, the time to replace the power semiconductor |
| 7095203 |
Numerical controller |
August 22, 2006 |
| A numerical controller which, after once stopping a slave axis during superposing control, can easily resume the superposing control. In the superposing control, a motion amount for a master axis and a motion amount for the slave axis are added to a workpiece coordinate value of the |
| 7093979 |
Aerostatic bearing |
August 22, 2006 |
| A guide member and a slide are disposed such as to be opposed to each other through a bearing clearance therebetween. Air is supplied to the bearing clearance through a main pipe, a branch pipe and an orifice provided in the slide. Shape and size of each portions of the main pipe, th |
| 7092791 |
Robot system and machining method with robot system |
August 15, 2006 |
| A robot system and a machining method capable of accurately and simply cutting an end of a pipe into a saddle shape and forming a hole on an outer surface thereof, and further machining a workpiece of a three-dimensional shape which does not have platelike shape. A tool unit is attac |
| 7092786 |
Tool damage/abnormality detecting device |
August 15, 2006 |
| A tool damage/abnormality detecting device capable of easily appropriately setting an allowable range for a value of comparison between a present value and a near past average for indexes indicative of loads on a tool. A machining cycle counter index i is adjusted to i=0, machining is |
| 7092413 |
Laser machining apparatus |
August 15, 2006 |
| A laser machining apparatus in which laser output can be easily corrected in view of secular change of components of the laser machining apparatus and influence of temperature. Output values of a laser oscillator operated according to a reference laser output command value Psc are st |
| 7085620 |
Servo controller |
August 1, 2006 |
| In response to a learning control start command from an external apparatus, an input switch for inputting a position deviation to learning control means and an output switch for outputting correction data from the learning control means are turned on, respectively, so that a position |
| 7084900 |
Image processing apparatus |
August 1, 2006 |
| An image processing apparatus capable of detecting position and posture of individual workpieces randomly arranged in a stack and having identical shapes. Reference models are created from two-dimensional images of a reference workpeace captured in a plurality of directions by a camera a |
| 7084596 |
Servomotor driving controller |
August 1, 2006 |
| A servomotor driving controller capable of highly accurate machining, which prevents a quadrant projection upon change in the quadrant where machining is made. After the position deviation converges to zero by means of learning control, the velocity command or a difference between th |
| 7083368 |
Numerical control apparatus |
August 1, 2006 |
| A machine having X- and Y-axis linear moving axes and a pivot axis B for rotationally pivoting a pivot member having a tool arranged at a distal end thereof about an axis parallel to a Z axis is controlled. A moving command obtained by a command program commanded by a position expressed |
| 7082349 |
Machining apparatus for machining a workpiece to reproduce a model shape |
July 25, 2006 |
| A machining apparatus capable of easily machining a workpiece to reproduce a shape of a machining model or with alternation of a scale in a scanning or profiling direction. A non-contact displacement gauge is fixed to one surface of a tool rest, and a tool to the other surface. A machini |
| 7074032 |
Injection mechanism for injection molding machine |
July 11, 2006 |
| An injection mechanism for an injection molding machine includes a front plate carrying an injection cylinder. A guide rod is arranged fixedly relative to the front plate, and defines a longitudinal guiding axis. A movable plate is arranged movably relative to said front plate along said |
| 7074028 |
Injection molding machine having a freely rotatable screw |
July 11, 2006 |
| By starting injection, resin pressure in front of the check valve is raised, and the check ring moves backward. Pressure of resin accumulated between flights of the screw prevents the check ring from moving backward, and the screw is kept freely rotatable to thereby make the backward |
| 7071651 |
Position-of-magnetic-pole detecting device and method |
July 4, 2006 |
| A high-frequency voltage whose amplitude is small is applied as a d-phase command voltage, and an excitation phase is changed to a predetermined degree at predetermined intervals, whereby a motor is driven. As the d-phase command voltage has the small amplitude and high frequency, the |
| 7069808 |
Line laying structure for robot wrist |
July 4, 2006 |
| A line laying structure for a wrist of a robot capable of enhancing durability of lines of cables/pipes for flowing electricity, air, water, etc. to an end effector attached to the wrist, and reducing a restriction of angle of rotation of a wrist axis by rotation of the other wrist axes. |
| 7064516 |
Motor driver |
June 20, 2006 |
| While the motor drive amplifier is not operating, electromagnetic switch contacts are held closed for a predetermined period of time, three-phase power is rectified by a rectifier circuit and a smoothing capacitor is charged. Then, the smoothing capacitor is discharged through a disc |
| 7054712 |
Wire contact/noncontact boundary position detecting apparatus of wire cut discharge machine |
May 30, 2006 |
| Supply of a wire electrode, application of a detection voltage, and binarization and sampling of the detection voltage are started, so as to start advance of the wire electrode from the position A toward a workpiece. The position of the wire electrode when a sampling value (low level |
| 7049775 |
Servo motor control unit for press-forming machine |
May 23, 2006 |
| A servo motor for driving a die is provided with position and speed detectors. Further, a pressure sensor for detecting the pressure applied to a workpiece is provided. In the servo motor control unit, the smaller one of the speed command obtained by feedback control of the position and |
| 7042178 |
Motor driving apparatus |
May 9, 2006 |
| A motor driving apparatus including a regeneration control function and a power storage device for accumulating a regenerative current and for supplying an inverter section with electric power during acceleration. The inverter section is connected to a converter section by a DC link to |
| 7039494 |
Controller for machine |
May 2, 2006 |
| A controller that eliminates an error caused by acceleration/deceleration control, and controls the velocity of drive axes which is not represented by a rectangular coordinate system such that maximum allowable values of velocity, acceleration, and jerk of the drive axes are not exceeded |
| 7039493 |
Numerical control apparatus |
May 2, 2006 |
| In a numerical control apparatus, a speed difference .DELTA.S between a program command value Sc of spindle speed and a spindle rotational speed Sov to which a spindle rotational override is applied is determined. From the speed difference .DELTA.S and a pitch command value P and a respo |
| 7039490 |
Controller for wire electric discharge machine |
May 2, 2006 |
| A controller for a wire electric discharge machine which can achieve stable machining with high surface accuracy without requiring adjustment of a gain or the like in wire-electrode feed control. A discharge gap detection unit detects a voltage between a wire electrode and a workpiec |
| 7038418 |
Numerical control apparatus |
May 2, 2006 |
| The numerical control apparatus includes a numerical control part for outputting a move command, one motor control part for generating a PWM signal for a plurality of motors based on the move command from the numerical control part, and a plurality of motor amplfiers for driving the |
| 7038165 |
Laser machining robot |
May 2, 2006 |
| If a machining program is reproduced in a robot controller and a robot is moved on a machining route, then a detection signal of a distance sensor is fetched through a distance sensor amplifier, and tracer control is carried out so as to keep a distance between a laser machining head and |
| 7035711 |
Machining system |
April 25, 2006 |
| A machining system displaying operation programs and associated information for a plurality of components of the system on the same display screen for confirming, creating and editing of the operation programs and associated information. A machine tool, a jig device for fixing/unfixi |
| 7034491 |
Numerical controller |
April 25, 2006 |
| For outputting an amount of backlash compensation according to the direction of reversal in the reversal motion of the moving axis, three output modes are prepared: (a) a mode in which a preset backlash compensation is outputted all at once, (b) a mode in which backlash compensation |
| 7033308 |
Automatic tool changing device for machine tool |
April 25, 2006 |
| An automatic tool changing device capable of cleaning a contact surface of a spindle, which is to be in contact with a tool holder, with a simple structure. The device includes a turret having a plurality of grippers on its outer circumference and holding the tool holder by means of the |
| 7030585 |
Controller |
April 18, 2006 |
| A controller capable of preventing response delay and generation of vibrations attributable thereto during position control of a movable part of a machine having low rigidity. A motor for driving a machine having low rigidity is subjected to position and velocity loop control. Compen |
| 7030363 |
Safety device for automatic machine system |
April 18, 2006 |
| During a robot is taking workpieces out of a workpiece container 2, a safety fence 2 and a photoelectric sensor 1 are valid and the robot is stopped when the safety fence 2 is opened or a beam from the photoelectric sensor 1 is cut off. A safety fence 1 and a photoelectric sensor 2 a |
| 7028578 |
Wrist driving mechanism for robot |
April 18, 2006 |
| A wrist driving mechanism capable of arranging a large amount of cables and pipes in a robot arm. A robot wrist mechanism having three degrees of freedom is driven by first, second and third drive shafts for transmitting driving forces of first, second and third motors M4, M5 and M6, |
| 7027963 |
Simulation system |
April 11, 2006 |
| Geometric information, layout information, etc. of workpieces and others are read from a CAD system etc. into a simulation system. A three-dimensional model is laid out on a screen of the simulation system by using layout plans and shape data of a robot, workpiece, and worktable. An |
| 7026778 |
Numerical controller |
April 11, 2006 |
| A data table stored in a numerical controller associates motors controlled by the numerical controller with information from sensors used by the motors. When the numerical controller is turned on, the contents of the data table are sent from the numerical control section to the motor |
| 7024271 |
Numerical control device |
April 4, 2006 |
| A plurality of paths controlled by a multi-path numerical control device is divided into several groups in advance. When an alarm or single block stoppage occurs in any one path while the multi-path numerical control device is being operated, the operations of all the paths in the group |
| 7024269 |
Numerical control apparatus |
April 4, 2006 |
| Foreground program execution means executes a program, and outputs movement commands to a control object. Meanwhile, background program execution means checks abnormalities by executing the program, without outputting the movement commands, obtained by executing the program, to the c |
| 7021917 |
Injection molding machine metering and control device |
April 4, 2006 |
| The retraction of the screw is controlled on the basis of the pressure deviation between the set resin pressure and the detected resin pressure. Furthermore, the screw is caused to rotate at a set speed. Moreover, when the deviation between the metering completion position and the curren |
| 7019246 |
Controller for wire electric discharge machine |
March 28, 2006 |
| A discharge pulse number generated between a wire electrode and a workpiece is counted every predetermined time. A ratio Px/Ps of this counted value Px to the reference pulse number Ps will be determined to control an amount of coolant in response to this ratio Px/Ps. Also, in respon |
| 7013195 |
Wire electric discharge machining apparatus |
March 14, 2006 |
| In a wire electric discharge machining apparatus, data on the number of machining shapes and the machining frequency of each of the machining shapes are acquired by analyzing the machining program and acquiring data on the machining starting positions, and those data are stored. Disp |
| 7012397 |
Encoder and control apparatus for motor |
March 14, 2006 |
| In a control apparatus, a "characteristic value calculation" block calculates a characteristic value (such as amplitude value, offset value, or waveform distortion for each phase of two-phase sinusoidal signals optically input from an encoder, or phase difference between the two phas |
| 7012215 |
Laser machining apparatus |
March 14, 2006 |
| A laser machining apparatus capable of changing a laser output condition at a desired machining position and time without regard to interpolation period (ITP). When the remaining motion command amount in the former of successive blocks, used for the interpolation period Q0 between these |
| 7011554 |
Grounding mechanism for electric motor with encoder |
March 14, 2006 |
| An assembly of electric motor with encoder, including an electric motor having a motor housing, and an encoder for detecting the rotation angle of the output shaft of the electric motor. The encoder includes a frame member attached to the motor housing in a conductive manner, a circuit |
| 7009133 |
Wire-cut electric discharge machine |
March 7, 2006 |
| A wire-cut electric discharge machine capable of taking out a cutoff piece smoothly upwardly of a workpiece even if the cutoff piece has a complicated shape, by holding the cutoff piece horizontally not to change an orientation thereof. The wire-cut electric discharge machine comprises |
| 7002585 |
Graphic display apparatus for robot system |
February 21, 2006 |
| 3-D models of various types of objects such as a robot body, and a peripheral equipment, a machine, a part (workpiece), of the robot, are stored in an object library in advance. Dimension line data of an edge line of which dimension can be changed, and constraint condition for constr |
| 7002095 |
Spot welding system and method of controlling pressing force of spot welding gun |
February 21, 2006 |
| A spot welding system using a spot welding gun having a servomotor for driving welding tips capable of suppressing variation of pressing force due to influence of heat generated by welding current to obtain an uniform pressing force. A difference between the temperature T detected by |
| 7002093 |
Manual feed device in wire electric discharge machine |
February 21, 2006 |
| A manual feeding device in a wire electric discharge machine in which selection between a jog feed and a step feed is made automatically without mode change. When an axis motion key is pressed, a timer measures the time for which the key is pressed. When the key is turned off before |
| 6999844 |
Numerical controller |
February 14, 2006 |
| A numerical controller for performing an machining operation by controlling relative position of a workpiece and a tool in synchronism with a rotational position of a rotational axis to which the workpiece or the tool is attached, without causing time delay of position control of the |
