Patent UA-85652-C2 (UA)
Title: System for working lengthy articles mainly of wood, set of mills and mill for its realization, mill cutter and method of manufacture thereof
Inventor: ZABIELINA-FILKOVSKA TETIANA SERHIIVNA
IPC: A01F29/02
Filed: 2008-04-02
Abstract: Disclosed is a group of inventions, namely: “System for working lengthy articles mainly made of wood, set of mills and mill for its realization, mill cutter and method of manufacturing thereof”. A system for working of lengthy articles has a working center equipped with spindles, on each of which an appropriate mill is installed at an angle of inclination of the axis of spindle to the billet (to the direction of feed of billet) for working a part of the surface of billet of article at its displacement (feed) for working, in the case the mills are distanced in the space lengthwise of billet and provide for, at least, one-sided finish working of billet and are installed on appropriate spindles. In the case lateral mills are installed with possibility of simultaneous (synchronous) adjustment of the width of lug and groove corresponding to it, which is cut through, and their shift along the height of billet and with possibility of working the billet of adjustable thickness due to use of adjustable fastening elements of mill on the spindle and adjustable mills, and remaining mills are installed on the spindles with possibility of adjustment of the angles of slope of the axes of spindles relative to billet and direction of feed of billet, in the case in each mill at least one cutter is installed with possibility of adjustment of its position and is located symmetrically relative to the axis of symmetry and elements of its fastening in mill body and equipped with two figured cutting edges. Disclosed set of mills for working of lengthy articles contains at least one mill, each of which is made with body, in which by fastening means the cutters are installed. Each of the mills is compound, equipped with internal bushing, which by a detachable joint is connected with the spindle, on which it is fixed by means a catch, coaxially installed in the mill body, connected with it by a threaded connection and equipped with at least one adjusting (fixing) lock nut with possibility of adjustment of width and depth of lug and groove corresponding to it and subject to cutting, and also adjustment of shift of lug and appropriate groove that is cut out on the height of work. The mill contains a body, in which by means (elements) of fastening the cutters are installed which are made with possibility of successive use of each cutting edge with change of the position of plate in the body. Disclosed method of manufacturing a mill cutter includes successive producing lamellar billet with required overall dimensions by cutting of metallic strip by abrasive tool, burning in the billet openings for fastening the elements on electroerosion machine with use of electrical discharge and process liquid, cutting of billet with preliminary assignment to the plate of required shape of its cutting edge, creation on the surface of the plate of the basing comb with use of a profile abrasive disk, final shaping of metallic plate with assignment to its cutting edge of required shape and dimensions and groove of cutting edge. Cutting the billet with preliminary assignment to the plate of required shape of its cutting edges is carried out on the electroerosion machine with use of electrical discharge in process liquid between two electrodes, in the case as one of the electrodes of electroerosion machine a metallic conductor is used which moves orthogonally to the plane of workable plate, and as the second electrode - lamellar billet, and (final) shaping of metallic plate with assignment to its cutting edge of required shape and dimensions and groove of cutting edge are performed on electroerosion machine simultaneously. The use of invention provides for increase of efficiency of the technology of working lengthy articles, mainly of wood.