FIXATION DEVICE Russian patent published in 2001 - IPC

FIELD: fixation of thin wall parts at working. SUBSTANCE: fixation device includes supporting platform with power drive, ring-shaped fixing chamfered member and washer. Fixing member includes four sectors whose ends are restricted by planes normal relative to plane of fixing member. In first and third sectors having mirror symmetry one end is restricted by radius and second end - by chord joining sector arc along inner diameter of ring-shaped fixing member. Ends of closing sector are parallel to second end of first and third sectors. Closing sector is the last sector to be introduced into inner annular -shaped groove of part. Power drive provides clamping of fixation device for working outer surface of part. In description of invention dependence is given for selecting width of closing sector. EFFECT: enhanced quality of surface layer of part due to increased rigidity of thin-wall part at working. 2 cl, 1 dwg, 1 ex