METHOD OF INSTALLING SHAFT WITH KEY SLOT ON THRUST CENTRES OF MACHINE Russian patent published in 2025 - IPC B23Q3/06 

FIELD: performing operations.

SUBSTANCE: invention relates to metal working and can be used for installation of shaft with key slot on thrust centres of machine. Proposed method comprises arranging shaft on front and rear thrust centres arranged respectively in machine spindle cam driven chuck and machine tailstock quill, and radial displacement of said chuck toward shaft. wherein single-cam chuck with invariable cam motion and retainer and key arranged on said cam are used. Shaft is placed in a position providing for the possibility of interaction of the said shaft slot with the key, after which the shaft is turned in the centres until the shaft key slot is aligned with the retainer and the retainer is brought into the key slot, and then by means of radial movement of the cam the key is brought into the said slot.

EFFECT: use of the invention makes it possible to improve the surface quality of the shaft fixed on the machine.

1 cl, 2 dwg