Abstract:
Immediately before a robot 20 starts to move at a high speed, a monitoring area 53 is expanded in a returning direction Y, and absence of an obstacle in the monitoring area 53 is confirmed. During the high speed movement of the robot 20, the monitoring area 53 is expanded forward, so that a safety of an operator is secured, an effective use of a working station area can be made, and an improvement of productivity can be achieved.
Abstract:
An apparatus for and a method of fitting or removing a motor vehicle tyre 4 comprising a rotatably supported wheel receiving device 2 to which the rim 3 is to be fixed, at least one fitting or removal tool 5, a rotary drive device 10 for the wheel receiving device and a sensing device 6, 7, 8 for sensing the radially outer rim contour 12, 14 along which the at least one fitting or removal tool is to be guided during the fitting or removal operation, wherein the sensing device 6, 7, 8 is a sensing device which contact-lessly senses the rim contour and the sensing signals of which are converted into electrical sensing signals, and connected to the sensing device 6, 7, 8 is a control device 9 which evaluates the electrical sensing signals and which controls the at least one fitting or removal tool 5 in the fitting or removal operation in dependence on the sensing signals without contact with the rim surface.
Abstract:
A method of recording aligned images on two sides of a printed circuit board substrate, including: recording an image of an electrical circuit pattern on a first side of a printed circuit board substrate; forming an alignment pattern on a side of the printed circuit board substrate, wherein the alignment pattern has a known spatial relationship to said image of an electrical circuit pattern; determining a location of the alignment pattern on the printed circuit board substrate; and recording an image of an electrical circuit pattern on a second side of the printed circuit board substrate in response to the determined location of the alignment pattern.
Abstract:
A system and a method for re-calibrating a robot, an end-effectuator of the robot and a fixture for holding a production part based upon measurements recorded by a sensor after contact or interception with random points along the three-dimensional contour of the end-effectuator of the robot.
Abstract:
A method of recording aligned images on two sides of a printed circuit board substrate, comprising: recording an image of an electrical circuit pattern on a first side of a printed circuit board substrate; forming an alignment pattern on a side of the printed circuit board substrate, wherein said alignment pattern has a known spatial relationship to said image of an electrical circuit pattern; determining a location of the alignment pattern on the printed circuit board substrate; and recording an image of an electrical circuit pattern on a second side of the printed circuit board substrate in response to the determined location of the alignment pattern.
Abstract:
A robotic machine includes a machine tool removably supported in a mount for following a programmable path over a workpiece. A calibration pointer includes a housing configured like the tool for being supported in the mount, and a laser is affixed in the housing for emitting a laser beam at the workpiece. In a method of operation, the laser beam is projected from the laser in a focused spot at the workpiece at an offset therefrom. The spot permits accurate programming of the machine without contacting the workpiece.
Abstract:
A coordinate positioning machine comprises a fixed structure including a table and a supporting frame (314), rigidly connected together. A moveable arm (310) is suspended from the frame by means of three powered telescopic struts (316), each of which is universally pivotally connected to both the arm and the frame. As a consequence the moveable arm is able to move with three rotational degrees of freedom. Movement of the arm with each of these degrees of freedom is constrained by a passive device (340), connected to the arm and the fixed structure, and which eliminates all rotational movement of the arm, while simultaneously permitting translation thereof.
Abstract:
An apparatus for moving a stage, supported by a base, to a target position. The apparatus includes a motor for driving the stage in X and Y directions, a laser interferometer for measuring a current position of the stage in the X and Y directions and a controller for generating a control signal for controlling the motor to move the stage to the target position in the X and Y directions on the basis of the target position and for dynamically setting a transfer function associated with generation of the control signal in correspondence with the current measured position. The controller sets the transfer function so that a gain decreases as the stage moves toward a peripheral portion of the base.
Abstract:
A coordinate positioning machine comprises a fixed structure including a table and a supporting frame (314), rigidly connected together. A moveable arm (310) is suspended from the frame by means of three powered telescopic struts (316), each of which is universally pivotally connected to both the arm and the frame. As a consequence the moveable arm is able to move with three rotational degrees of freedom. Movement of the arm with each of these degrees of freedom is constrained by a passive device (340), connected to the arm and the fixed structure, and which eliminates all rotational movement of the arm, while simultaneously permitting translation thereof.
Abstract:
A machine tool is provided in which a carriage is supported on the upper flat surface of a work table by first bearings. The carriage extends beyond the bearings in one direction to support a tool, so that the weight of the carriage and tool creates a moment tending to rotate the carriage downwardly toward the work table on one side of the bearings. This is countered by a second bearing that extends to a second downwardly facing surface which may be a separate element or the undersurface of the work table. The second surface is adjustable for parallelism with the work table. Linear actuators move the carriage over the work table. In a multispindle machine, three actuators are required, at least two of which are nonparallel.