DEVICE AND METHOD FOR PROCESSING INTERNAL SURFACE OF STEEPLY BENT PIPELINE AND MACHINED BRANCH Russian patent published in 2023 - IPC B08B9/55 B08B9/04 B23B39/14 B23B39/20 

FIELD: metal processing.

SUBSTANCE: devices and methods for processing the inner surface of a steeply curved pipe bend, for example, for turning by cutting, as well as machined bends, i.e. bends with a machined inner surface. A device for processing the inner surface of a steeply curved pipeline branch, containing a base located on a turntable. The turntable is rotatably positioned on the support table. Console extending from the base and made curved. The headstock for the spindle shaft is fixed on the free end of the console and is configured to accommodate the spindle shaft. Spindle shaft located in the headstock with the possibility of rotation. Machining tool holder mounted on the spindle shaft. Clamping means fixed on the support table with the possibility of installing a guide support and a machined branch. The headstock is made with the possibility of moving in the cavity of the installed guide support and in the cavity of the installed machined outlet when turning the turntable with the base mounted on it with the console and holding the axis of the spindle shaft in a position tangential to the circle centered on the axis of rotation of the turntable and with a radius equal to the radius curvature of the axial line of the processed branch, measured from the center on the axis of rotation of the turntable. A processing method and an outlet with a machined inner surface.

EFFECT: ensuring high accuracy and cleanliness of processing of the inner surface of a steeply curved branch of the pipeline when using the present device and implementing the present method.

12 cl, 14 dwg