Marposs Societa' Per Azioni

Riccardo Cipriani

Carlo Dall'Aglio

Stefano Romagnoli

A system for checking the axial position of a bearing () inside an hole () of an E-block (), preferably during the assembly of an HSA, comprises a reference system () that locates the E-block, a coupling element () that comes into contact with the bearing, a floating element () that, being connected to the coupling element, assumes the attitude of the bearing, two or more detection devices, for example optoelectronic, that cooperate with the floating element and detect at the same time, at checking areas are spaced apart from each other, quantities indicative of the position and, in case, of the attitude of the bearing with respect to the E-block, and a processing unit () for receiving and processing the detected quantities. A corresponding method for checking comprises the steps of locating E-block and bearing to mutually movable parts of the reference system, detecting at the same time, at least at two checking are spaced apart from each other, quantities indicative of the position and in case, of the attitude of the bearing with respect to the E-block, and processing the detected quantities. The invention relates also to an equipment and a method for assembling HSAs, that respectively employ the above-mentioned system and method for checking the mutual position and, in case, the attitude of the bearing with respect to the E-block.

System and method for checking the mutual position of components of a workpiece and equipment using such system and method

A method for checking the diameter of a cylindrical part, such as a crankpin of a crankshaft, in orbital motion in a numerical control grinding machine, by means of a checking apparatus with a Vee-shaped reference device for cooperating with the crankpin, a support device movably carrying the Vee-shaped reference device, and a measuring device movable with the Vee-shaped reference device. The Vee-shaped reference device is brought, from a rest position, into contact with the crankpin, and the contact, that defines a checking condition, is maintained by gravity during the orbital motion of the crankpin.

Method for checking the diameter of a cylindrical part in orbital motion

An apparatus for checking the diameter of crankpins () of a crankshaft () in the course of the machining in a grinding machine comprises a first arm () rotating with respect to a support () arranged on the grinding-wheel slide () of the grinding machine, a second arm () rotating with respect to the first, a reference device () carried by the second arm and a measuring device (-) associated with a reference device. A guide device (), fixed to the reference device (), enables the apparatus to engage a crankpin, in the course of the orbital motion of the crankpin, and limit the displacements of the first arm and those of the second arm when a control device (-) displaces the apparatus to a rest position.

Apparatus for checking diametral dimensions of a cylindrical part in orbital motion in a numerical control grinding machine

An optoelectronic system for checking the relative attitude of component parts of an HSA () including a base (); a reference system () connected to the base and having a stationary support () adapted to cooperate with positioning surfaces () of the HSA, and a floating device () which floats with respect to the stationary support and is adapted to cooperate with working surfaces () of the HSA; an optoelectronic detection device; and a processing unit for receiving and processing signals of the optoelectronic detection device. The floating device includes a floating element () adapted to cooperate with the optoelectronic detection device. A method for checking the relative attitude of component parts of a mechanical piece by means of an optoelectronic system includes the steps of referring a first component part of the HSA to the reference system; locking the HSA at a checking position; bringing the floating device with the floating element () to contact a second component part of the HSA; and carrying out dimensional and positional checkings of component parts of the floating element () by means of the optoelectronic system.

Apparatus and method for checking component parts of a mechanical piece

Apparatus for checking diametral dimensions of a rotating cylindrical part during a grinding thereof

An apparatus for checking mechanical pieces comprises a base (), a locking and reference system (), an optoelectronic measuring system (), displacement systems () and a processing unit () for receiving and processing the signals of the optoelectronic system. The displacement systems also enable mutual translation displacements, along a transversal axis, between the optoelectronic system and the piece to be checked. A method of checking foresees to detect signals provided by the optoelectronic system relating to a surface () of the piece in the course of the mutual oscillations, at at least two different transversal positions (A, B), and carry out a processing in order to obtain information relating to a virtual surface ('). The method and the apparatus enable to obtain information relating to the position and/or the arrangement and/or the shape of even very small-dimensioned component parts of hard disk storage units.

Apparatus and method for checking position and/or shape of mechanical pieces

Apparatus for checking diametral dimensions of cylindrical parts rotating with an orbital motion

An apparatus and a method for measuring the force (GL) applied by an elastically flexible element () undergoing a pre-set elastic deformation, more specifically an element that carries a slider () and includes a thrust device that applies a force to the flexible element. The thrust device includes, for instance, a pneumatic nozzle () for applying a force (R) to an intermediate portion () of the thin plate, at a thrust section (K). A position sensor () detects the height (z) of the slider&#x2014;indicative of the deformation of the flexible element. The value (MF) of the moment of the applied torque when the height (ZF) of the slider indicates the pre-set elastic deformation of the flexible element, is utilized for calculating the force to be measured according to the formula GL=MF/L where L is the distance separating the slider from the section of weakness.

Apparatus and method for the checking of forces

An apparatus for checking the diameter of crankpins (,) of a crankshaft (,) in the course of the machining in a grinding machine comprises a first arm (,) rotating with respect to a support (,) arranged on the grinding-wheel slide (,) of the grinding machine, a second arm (,) rotating with respect to the first, a reference device (,) carried by the second arm and a measuring device (,) associated with a reference device. A guide device (,), fixed to the reference device (,), enables the apparatus to engage a crankpin, in the course of the orbital motion of the crankpin, and limit the displacements of the first arm and those of the second arm when a control device (,) displaces the apparatus to a rest position.

Growing community of inventors

Ferrara, Italy

Riccardo Cipriani