METHOD AND DEVICE FOR MONITORING ACCURACY OF PRODUCT SHAPE, LOCATION AND SIZE OF HOLES Russian patent published in 2015 - IPC G01B3/28 

FIELD: woodworking industry.

SUBSTANCE: reference square with indicator depthometers and a device with rearranged beams and calibres, perceiving deviations from the desired shape, location and size of holes, are mounted on the object. According to the values of the deviations obtained on the indicators the difference of the marginal references is calculated and compared with standard values, based on the entrance size of the hole of the object of the passages of the calibres the presence of deviations from the diameters and from the accuracy of the hole location is evaluated.

EFFECT: improvement of quality and accuracy of determining the deviation from the perpendicularity of the sides, the location and the diameters of the holes, providing versatility and operational capability during a single installation of the device on the object to assess the deviations of sides from perpendicularity and straightness with simultaneous assessment of compliance with the standard requirements, from the regularity of arrangement of the holes and their diameters, improvement of organisation of control through the operational comprehensive assessment of deviations, reducing the labour intensity of performing the measurements.

2 cl, 1 dwg