Abstract:
A workpiece centring assembly comprising a workpiece support surface and sleeve, the workpiece support surface and sleeve being arranged for relative rotation, and jaws arranged for movement with respect to the workpiece support surface to centre the workpiece on the workpiece support surface, further comprising elongate bearings arranged for rotation with the workpiece support surface, slidable members supporting the jaws and arranged for movement along the elongate bearings, and connectors having pivotal couplings to respective slidable members and the sleeve, wherein the relative rotation causes the connectors to pivot about their pivotal couplings to allow movement of the slidable members along the elongate bearings and consequential movement of the jaws with respect to the workpiece support surface.
Abstract:
Apparatus for revealing the geometry of operative cylinders, in particular during the grinding operation of the same, comprising a pair of movable clamps (13, 14) which can be moved away from and towards each other with respect to a fixed intermediate structure (15), the clamps (13, 14) having tilted surfaces (19, 20) in opposite directions to each other according to a swallowtail arrangement with respect to a cylinder (11) being measured, positioned between them and between a surface (21) of the fixed intermediate structure (15), the surfaces (19, 20) of the movable clamps (13, 14) and the surface (21) of the fixed intermediate structure (15) always being kept in contact with the cylinder (11) whether it be still or rotating, wherein the fixed structure (15) also has in its interior, parts of a group which interact with each other (32, 33; 29, 43; 28, 35, 36, 37, 38) to correlate the movement of the clamps (13, 14).
Abstract:
A system includes at least one body, a link for suspending the body for movement with gravity from a first elevation position to a second elevation position, and an electrical energy generator coupled with the body through the link to drive the generator to generate electricity upon movement of the body with gravity from the first to the second elevation position. The at least one body has a mass of at least approximately 100 tonnes; the first and the second elevation positions define a distance therebetween of at least approximately 200 meters; and/or the system further includes an operator configured to operate the link to controllably move the at least one body against gravity from the second to the first elevation position to increase a gravitational potential energy of the at least one body, and to maintain the gravitational potential energy of the at least one body.
Abstract:
A micro-cavity measuring equipment based on double optical fiber coupling includes a sight and transmitter, a controller, and a length measuring device. The equipment detects small changes in the position of an object with respect to a probe from a moment when the sight and transmitter starts working to another moment when the sight and transmitter stops working. The controller has a program to automatically control the whole measuring process. The measuring equipment is characterized in that the sight and transmitter consists of a laser unit, a data collecting and processin unit, and a double optical fiber coupling unit with its ends of incident and effluent optical fibers fixe on a coupler. A micro-cavity measuring method based on double optical fiber coupling consists of th following steps: inserting the probe into the micro-cavity and moving it in the measuring direction; sending signals to the length measuring device by the sight and transmitter to cause the length measuring device to record the corresponding position of the probe when the probe is contact with the sides of the micro-cavity; and then calculating the dimensions of the micro-cavity.
Abstract:
A micro-cavity measuring equipment based on double optical fiber coupling includes a sight and transmitter, a controller, and a length measuring device. The equipment detects small changes in the position of an object with respect to a probe from a moment when the sight and transmitter starts working to another moment when the sight and transmitter stops working. The controller has a program to automatically control the whole measuring process. The measuring equipment is characterized in that the sight and transmitter consists of a laser unit, a data collecting and processin unit, and a double optical fiber coupling unit with its ends of incident and effluent optical fibers fixe on a coupler. A micro-cavity measuring method based on double optical fiber coupling consists of th following steps: inserting the probe into the micro-cavity and moving it in the measuring direction; sending signals to the length measuring device by the sight and transmitter to cause the length measuring device to record the corresponding position of the probe when the probe is contact with the sides of the micro-cavity; and then calculating the dimensions of the micro-cavity.
Abstract:
The invention relates to a measuring apparatus for cylinders, rolls and similar elements to be measured during the grinding operation, equipped with detection systems of the geometrical and dimensional characteristics (for example roundness, shape, diameter, etc.) and /or structural characteristics (for example, the presence of cracks and work hardening, measurement of the hardness, etc.) and/or surface characteristics (for example roughness, states of surface tension, etc. ) The measurement of the geometrical characteristicsis performed with four detection points .
Abstract:
A roundness calibration device includes a ring or plug gauge with a wall defining an arcuate surface traversable by a sensing probe. A protuberance, typically in the form of a piston, is displaceably mounted in a radial bore in the wall. A displacement device adjusts the amount of protrusion of said protuberance to locally, radially modify the arcuate surface. A calibrated measuring device accurately determines the amount of protrusion.
Abstract:
An adjustable abutment (14) is automatically brought into contact with the center of the face (6) of a part to be checked (5) thus eliminating all periodic lateral movement of such part (5).
Abstract:
A nominally cylindrical surface (10a) of a workpiece (10) is sensed by a stylus (9) displaceable radially of an axis (A) of rotation of the surface relative to a support column (5) defining a reference datum (B) so that the stylus (9) follows the cylindrical surface at a given height along the surface. Relative rotation of the workpiece (10) and the stylus (9) about the axis (A) of rotation of the surface (a) is effected and the displacement of the stylus (9) used to determine information relating to the radial form of the surface at that height. These measurements are repeated at different heights along the surface so as to determine its cylindrical form. The displacement of the stylus (9) from a given position on the surface at each height before and after rotation (A) of the stylus and workpiece through 180 DEG are measured and the resulting measurements used to compensate for any error or deviation in the reference datum.