US 2018/0003474 A1Published application

Test system and method for examining a hollow body

AssigneeSturm Maschinen- & Anlagenbau GmbH

InventorsGerhard AUFSCHLÄGER, Wolfgang ULLRICH, Florian BADER, Marc KESTING, Ralf VÖLLINGER

Life of this patent

Estimating the term…

Loading patent…

Abstract

A test system for examining a hollow body, in particular a cylinder bore in an engine block, comprises a measuring apparatus comprising an elongate body and a plurality of sensors which are connected to the body and are set up to carry out a distance measurement. The test system also comprises electronic control means which are set up to move the measuring apparatus into a hollow body to be examined and to determine an internal diameter of the hollow body on the basis of distance measurement data from the sensors. In order to examine hollow bodies of different diameters, at least some of the sensors are in the form of movable sensors which can be moved relative to the elongate body of the measuring apparatus. The electronic control means are also set up to select a measuring position of the movable sensors relative to the elongate body on the basis of a hollow body to be examined. A calibration station is provided and the electronic control means are set up to carry out a calibration process for the movable sensors. A corresponding method is also disclosed.

Claims15

Dependent claims

Test system for examining a hollow body (1), in particular a cylinder bore (2) in an engine block (1), with

a measuring device (10) comprising an elongate body (12) and several sensors (15, 16) which are connected to the body (12) and adapted to carry out a distance measurement,
electronic control means which are adapted to move the measuring device (10) into a hollow body (1) to be examined and to determine an internal diameter of the hollow body (1) on the basis of distance measurement data of the sensors (15, 16),
characterized in that
for the examination of hollow bodies (1) of different diameters at least a part of the sensors (15, 16) are designed as movable sensors (15, 16) which are optical sensors (15, 16) and movable relative to the elongate body (12) of the measuring device (10) at least in the radial direction,
in that depending on a hollow body (1) to be examined the electronic control means are adapted to select a measuring position of the movable optical sensors (15, 16) relative to the elongate body (12),
in that a calibrating station (30) is provided and
in that the electronic control means are adapted to carry out a calibration process for the movable sensors (15, 16) on the calibrating station (30), wherein for a calibration measurement the optical sensors (15, 16) are moved to a reference measuring position relative to the elongate body (12).

4 more elements

Dependencies are inferred from the claim text.