Abstract: An image measurement method for performing shape measurement of a component in which measurement points associated with identifiers are set includes: a first step of capturing images of the component to obtain measurement images; a second step of obtaining correspondence data in which the identifiers of the measurement points are associated with the measurement image; a third step of counting the number of measurement images associated with the identifier of each measurement point based on the correspondence data; a fourth step of calculating an evaluation point for each measurement image based on evaluation parameters including the number of measurement images; a fifth step of selecting and removing measurement images based on the calculated evaluation points; and a sixth step of performing the shape measurement of the component by using the measurement images other than the removed measurement images.

Abstract: A gap measurement device for measuring a gap between an upper plate and a lower plate in a material formed of the upper plate and the lower plate that overlap with each other in the Z-axis direction, which is the thickness direction. The gap measurement device has an ultrasonic sensor that functions as a plate thickness measurement sensor for measuring a plate thickness that is the thickness of the upper plate, a laser sensor that functions as a step measurement sensor for measuring a step that is the distance between the upper surface of the upper plate and the upper surface of the lower plate, and a calculation unit for calculating the gap between the upper plate and lower plate by subtracting the plate thickness from the step.

Abstract: A gap measurement device for measuring a gap between an upper plate and a lower plate in a material formed of the upper plate and the lower plate that overlap with each other in the Z-axis direction, which is the thickness direction. The gap measurement device has an ultrasonic sensor that functions as a plate thickness measurement sensor for measuring a plate thickness that is the thickness of the upper plate, a laser sensor that functions as a step measurement sensor for measuring a step that is the distance between the upper surface of the upper plate and the upper surface of the lower plate, and a calculation unit for calculating the gap between the upper plate and lower plate by subtracting the plate thickness from the step.

Abstract: A gap measuring device is provided with: a translucent member which is formed from a translucent material and has a first abutting surface which abuts an upper surface of a lower plate, and a second abutting surface which is provided perpendicular to the first abutting surface and abuts a side end surface of an upper plate; an image-capturing unit which captures an image of a gap, through the translucent member; and a gap measuring unit which measures the gap on the basis of image information relating to the gap of which an image has been captured. The translucent member is provided, at an edge portion between the first abutting surface and the second abutting surface, with a mark indicating the position of the edge portion.

Abstract: A workpiece measuring device, a collision preventing device, and a machine tool acquires 3D data of the shape of a workpiece used to prevent a collision between the workpiece and part of the machine tool. A measuring section measures the distance to the workpiece through scanning in a non-contact manner; and a shape recognition section generates a 3D mesh structure. The coordinates of a measurement point on the workpiece based on distance information about the measured distance to the workpiece, and that generates a measurement geometry map such that, when the ratio of the number of times the calculated measurement point is included in one unit of the 3D mesh structure to the number of times a position of the workpiece corresponding to the one unit is scanned is equal to or larger than a predetermined threshold, the one unit is regarded as part of the workpiece are included.

Abstract: Disclosed is a shape measurement device for a machine tool workpiece that is capable of measuring in a short period of time in comparison to cases using a high precision sensor exclusively and is capable of measuring a prescribed spot with high precision, which is equipped with a wide range sensor (11) that is capable of measuring across a wide range, a first workpiece model generator (13) that generates an approximate 3D shape of the workpiece (1) on the basis of data measured by the sensor (11), a high precision sensor (12) that is capable of high precision measurement, a second workpiece model generator (14) that generates a high precision 3D shape of the workpiece (1) on the basis of the data measured by the sensor (12), and a workpiece model integrator (15) that generates an entire 3D shape of the workpiece (1) by replacing, on the basis of the approximate 3D shape of the workpiece (1) and the high precision 3D shape of the workpiece (1), spots on said approximate 3D shape of the workpiece (1) that match

Abstract: A workpiece measuring device, a collision preventing device, and a machine tool acquires 3D data of the shape of a workpiece used to prevent a collision between the workpiece and part of the machine tool. A measuring section measures the distance to the workpiece through scanning in a non-contact manner; and a shape recognition section generates a 3D mesh structure. The coordinates of a measurement point on the workpiece based on distance information about the measured distance to the workpiece, and that generates a measurement geometry map such that, when the ratio of the number of times the calculated measurement point is included in one unit of the 3D mesh structure to the number of times a position of the workpiece corresponding to the one unit is scanned is equal to or larger than a predetermined threshold, the one unit is regarded as part of the workpiece are included.