GAUGE FOR INSPECTION OF DEEP CONICAL HOLES Russian patent published in 2024 - IPC G01B3/56 G01B3/46 G01B5/24 G01B5/12 

FIELD: measuring.

SUBSTANCE: invention relates to measurement equipment and can be used in industry for production of tubular products with inner conical surfaces located at a considerable distance from the end of the product. Gauge for controlling the taper of holes contains a plate disc with a hole for fitting in the form of truncated cone 1, used as a control element, rigidly fixed on setting rod 2, with nut 3, guide base disc with indicator 4, fixed on end of tubular workpiece with conical surfaces 5, adjusting washer 6, which is located between the seat of the plate disc and the protrusion of rod 2. There are two marks 8 on the setting rod of the disc in the area of the pointer, and on the pointer a zero position mark "0" is made in the form of intermittent vernier scale 7 to the right and to the left of the zero mark for measuring the actual deviation.

EFFECT: possibility of controlling deep inner conical holes by using appropriate replaceable gauges.

3 cl, 1 dwg