Abstract: A hand apparatus of a robot includes fingers for clamping a first workpiece and inserting a second workpiece into the first workpiece, a compliance device disposed between an arm of the robot and the fingers, and a calculator for determining shifting information between the first and second workpieces. A memory memorizes design information associated with the insertion operation of the first and second workpieces, and the hand apparatus selects whether the compliance device is required or not on the basis of the information provided by the calculator and the memory.

Abstract: A hand mechanism for a robot is attached to the distal end of an arm portion of a robot and has independent modules for executing predetermined elementary motions, which modules can be combined with each other in selected arbitrary combinations to attain desired elementary motions. The hand mechanism includes a holder module which includes a fixing member fixed to the arm portion, an attaching plate to be attached to other modules and a coupling mechanism for coupling the fixing member and the attaching plate. The coupling mechanism includes angle an adjustment pin for adjusting the attaching angle of the attaching plate about the arm portion, and a shear pin bolt for releasing a coupling state between the fixing member and the attaching plate upon application of a shock to the hand mechanism.

Abstract: In order to provide an automatic assembling method and apparatus for automatically assembling an assembly consisting of a compression spring, a retainer for holding the compression spring in a compressed state, and cotters for setting the retainer in a holding state so as to cause a shaft member slidably or pivotally arranged in a main body to perform a predetermined operation, the cotters are held in a supply posture state to the shaft member, the retainer is held at a position escaped from a cotter fitting or assembling position of the shaft member against the biasing force of the compression spring, the cotters in the supply posture state are supplied to the cotter assembling position of the shaft member, and the retainer is moved to the cotter assembling position by releasing the biasing force of the compression spring.

Abstract: A method for inserting an elastic ring having a peripheral opening within a workpiece. The elastic ring is first supplied to a ring receiving member, which then delivers the ring receiving member to an operating position. At the operating position, the diameter of the elastic ring is reduced by engaging portions on the ring receiving member. The diametrically reduced ring is then transferred to a finger member, which holds the ring in its reduced state and inserts the ring within the workpiece. The elastic ring is then released from the finger member and allowed to naturally expand within the workpiece.

Abstract: An injection molding apparatus uses motors to effect measuring and kneading of a material to be molded and injection driving. The amount of movement of a rotary shaft or rectilinearly moving means connected to a screw is detected by a sensor, and the driving of the volume measuring motor and the injection motor is effected by the output of the sensor.

Abstract: An injection molding apparatus includes a screw housed in a heating cylinder, a rotator for rotating the screw, a linear mover for moving the screw linearly, a motor for driving the rotator, a driver for driving the linear mover, and a base member for supporting the screw, the rotator, the linear mover, the motor and the driver. The screw, the linear mover and the rotator are supported by the base member along a vertical line against the ground. In the injection molding apparatus is a nozzle touch mechanism which includes a support member mounted on the base member, and a member for mounting a die member mounted on the support member to support the die member. The die member is mounted by the member for mounting the die member so that a molding material entrance port of the die member engages an injection port of the heating cylinder.

Abstract: An injection molding method uses motors to effect measuring and kneading of a material to be molded and injection driving. The amount of movement of a rotary shaft or rectilinearly moving means connected to a screw is detected by a sensor, and the driving of the volume measuring motor and the injection motor is effected by the output of the sensor.

Abstract: An injection screw disposed in a heating cylinder is connected to a rotary driving force receiving mechanism, a linear driving force receiving mechanism, and a back pressurizing mechanism. The rotary driving force of an electric motor is transmitted to the rotary driving force receiving mechanism and the linear driving force receiving mechanism through clutches, which are controlled according to sensors for detecting the position of the screw or the linear driving force receiving mechanism.

Abstract: An alignment apparatus is interposed between a machine body and a terminal body attached to the machine body and performs alignment therebetween to have a predetermined compliance. The apparatus includes a mounting body connected to the machine body, with the mounting body and the terminal body having opposing surfaces, a first shaft member engaged with an engaging portion formed on the opposing surface of the mounting body, and a second shaft member engaged with an engaging portion formed on the opposing surface of the terminal body. The second shaft member is located on an identical axis to the first shaft member. A plurality of pin members are disposed around the first and second shaft members to surround them, and biasing members apply a tightening force to the plurality of pin members.