MANUFACTURING METHOD OF ROTORS OF BALL GYROSCOPES Russian patent published in 2020 - IPC G01C25/00 

FIELD: instrument engineering.

SUBSTANCE: invention relates to the field of accurate instrument making and can be used in development of the technology for production of rotors of ball gyroscopes (hereinafter – BG). According to the method, the task is solved by: the height of each flange of the hemispheres is determined from the expression the center of the outer spherical surface of each hemisphere is shifted relative to the plane of separating the hemisphere along its axis of symmetry towards the pole by a value h = (0.015–0.02)⋅H; zone of loading of welded hemispheres with area S^d cylindrical bead with outer diameter D_n is formed on the end surface of each male die contacting flanges of the hemispheres, and ID D_in; flange height h₁ is determined from the condition h₁ = h, wherein welding pressure P_St. (ΔT_St.) in temperature range ΔT_St. = (T_St. – K⋅T_St.) is selected from relationship σ^d_t (ΔT_St.)⋅S^f > P_St. (ΔT_St.) > σ^d_t (ΔT_St.)⋅S^d, where is area of hemisphere flange end surface area; σ^d_t (ΔT_St.) is average value of yield point of material of hemispheres in temperature range (T_St. – K⋅T_St.); D^f_n Outer diameter of flanges.

EFFECT: technical result is improvement of manufacturing process of thin-wall rotors of BG, increased accuracy of manufacturing and reliability of thin-wall rotors of BG.

1 cl, 3 dwg