SUPPORT FOR BURNISHING WITH AFTER-STRETCHING Russian patent published in 2012 - IPC B23D41/02 

FIELD: machine building.

SUBSTANCE: support comprises a hollow casing and a tension carriage placed inside and movable in axial direction, connected with a hydraulic cylinder, and cams made as capable of interaction with a blank and installed on the support casing and the tension carriage. The casings of the support and the tension carriage are made as sleeves oppositely installed relative to each other, and the tension carriage casing is equipped with a cover, besides, the support casing and the cover have radial slots for placement of the blank, and are cut in axial direction jointly with the tension carriage casing, and cams are made in the form of fixed and rotary jaws.

EFFECT: invention provides for higher convenience in operation and simplified design of the support for burnishing with after-stretching of deep holes of low diameter carried out by means of burnisher pushing.

3 dwg