DEVICE FOR MEASURING FRICTION FORCES AND LENGTH OF CONTACTS AT MATERIAL CUTTING Russian patent published in 2010 - IPC G01N19/02 

FIELD: machine building.

SUBSTANCE: device for measuring friction forces and length of contacts at material cutting consists of case, of removable cutter, of cutting plate, of strap, of fingers interacting with screws, of plate with guide positioned between supports and transferred by friction forces, and of sensor for recording these forces. The device is distinguished with the following: an abutment bar is secured to the cutter to press a removable cutting plate to the cutter; between the cutter and the case there are arranged elastic components; also the plate functions as a guide; the abutment bar pressing the removable strap to the plate is attached to the plate; a rod contacts the sensor of plate motions and adjusting bar; additionally, the plate is pressed to the sensor of friction forces by means of seat members positioned in the case. The front facet of the cutter is composed with the cutting plate and strap arranged with a gap controlled by means of the sensor for recording forces, fingers travelling along screws and controlled sensor for travel recording.

EFFECT: upgraded reliability and accuracy of measurement of friction forces and length of contact of chip with front facet of cutter.

5 dwg