DEVICE FOR MEASUREMENT OF CUTTING FORCES DURING DRILLING Russian patent published in 2021 - IPC B23B51/00 G01L5/16 

FIELD: processing of metals by cutting.

SUBSTANCE: invention relates to machining of materials and can be used for measurement of forces and moments of cutting during drilling. Device comprises a movable table, a measuring platform with three support posts with coaxial rolling bearings, two coaxial shafts installed in said bearings with a common middle bearing, a tensometric torsion clutch with strain gauges on its surface, a weight device and a compression force sensor. First of these two shafts with a drill bit in end face is located in side and middle supports. This shaft ends with a flange located behind the middle support, in which a radial-thrust bearing serves as support for the second shaft. Second end of this shaft rests on the second lateral support. Strain gauge coupling is connected to the flange of the first shaft. On the strain gage end the horizontally mounted lever is fixed with its free end resting on the weight device.

EFFECT: simultaneous measurement of axial force and moment of cutting during drilling, higher accuracy of experimental analysis of cutting forces during drilling.

1 cl, 2 dwg