Abstract: Apparatus (1) for checking the dimensions and/or shape of a complex-shaped body (3), comprising a checking support (5) on which the body to be checked is positioned, a robotic system (8) with an optical assembly (17) and a memory unit (19) for storing reference data relating to a reference shape of the body. A processing and control unit (18) controls movements of the optical assembly so as to obtain dimensional values relating to the body at predetermined measuring points, these dimensional values then being compared with the reference data stored in the memory unit. The apparatus further comprises reference elements (35) defined in the checking support in predetermined positions and a distance sensor (17) for acquiring actual positions of said reference elements. Local compensation parameters for correcting positioning errors of the robotic system are calculated for each of the reference elements on the basis of the predetermined positions and the actual positions acquired.

Abstract: Method for checking the surface and/or shape of at least one surface, or part thereof, of an object made of transparent material, by means of a checking system which comprises a light source, a sensor and a processing unit connected to the sensor. By an appropriate positioning of the light source and sensor it is possible to overcome the problem of multiple reflections and to identify in a unique manner the rays scattered from the surface to be checked and received by the sensor which are useful for the purposes of checking. According to one of the embodiments, it is also possible to determine the thickness of the object to be checked.

Abstract: Apparatus (1) for checking the dimensions and/or shape of a complex-shaped body (3), comprising a checking support (5) on which the body to be checked is positioned, a robotic system (8) with an optical assembly (17) and a memory unit (19) for storing reference data relating to a reference shape of the body. A processing and control unit (18) controls movements of the optical assembly so as to obtain dimensional values relating to the body at predetermined measuring points, these dimensional values then being compared with the reference data stored in the memory unit. The apparatus further comprises reference elements (35) defined in the checking support in predetermined positions and a distance sensor (17) for acquiring actual positions of said reference elements. Local compensation parameters for correcting positioning errors of the robotic system are calculated for each of the reference elements on the basis of the predetermined positions and the actual positions acquired.

Abstract: Method for checking the surface and/or shape of at least one surface, or part thereof, of an object made of transparent material, by means of a checking system which comprises a light source, a sensor and a processing unit connected to the sensor. By an appropriate positioning of the light source and sensor it is possible to overcome the problem of multiple reflections and to identify in a unique manner the rays scattered from the surface to be checked and received by the sensor which are useful for the purposes of checking. According to one of the embodiments, it is also possible to determine the thickness of the object to be checked.

Abstract: A plug gauge (1) includes a support and protection frame with a handle (2) that defines a longitudinal axis and houses a position transducer (25) and electronic devices for wirelessly transmitting electrical signals indicative of a dimension to be checked. The gauge also comprises a probe (6) including a mechanical armset (7) provided with at least one movable feeler (10), and a transmission mechanism with a stem (17) transmitting movements of the feeler to the position transducer housed in the handle. The probe is connected to the handle by means of a quick coupling mechanism (5) with deformable locking portions (52), the radial arrangement of which is controlled by a clamping element (60).

Abstract: A plug gauge (1) includes a support and protection frame with a handle (2) that defines a longitudinal axis and houses a position transducer (25) and electronic devices for wirelessly transmitting electrical signals indicative of a dimension to be checked. The gauge also comprises a probe (6) including a mechanical armset (7) provided with at least one movable feeler (10), and a transmission mechanism with a stem (17) transmitting movements of the feeler to the position transducer housed in the handle. The probe is connected to the handle by means of a quick coupling mechanism (5) with deformable locking portions (52), the radial arrangement of which is controlled by a clamping element (60).