SU735396A1 - Composite mountable milling cutter for working the ends of wooden bars - Google Patents

Description

   one

The invention relates to machining of wood by cutting and can be used in the woodworking industry.

Knife cutter heads for milling a rectangular face are known, which provide the required roughness class on the surface of the transverse milling due to the deviation of the cutting edge from the forming mill C.

Closest to the present invention is a double-blade wing cutter comprising a base, brackets and multi-cutter elements 2 secured thereto.

However, chipping is unavoidable at the exit of the tool from wood when processing the bars without overpressure, and to ensure the required roughness class on the plane of the face milling, the presence of undercutters is necessary. In addition, the open, streamlined shape of the wing cutter creates high rotational resistance and strong noise.

The purpose of the invention is to prevent chipping of the fibers at the exit of the tool from wood when processing it without artificial selection and formul,.

end surface of the fgshtsa without undercuts.

This is achieved by the fact that the multi-cutter elements are made in the form of bands of band saws and secured to the side surface of the brackets along a helix. The purpose of imparting the necessary undercuts to the incisors of multi-cutter elements, on the crown 10 of which are grooves, in the latter are installed segments of band saws.

The drawing shows the assembled mounted cutter, general view.

15

Combined mounted milling cutter for processing the ends of wooden bars co. holds the base 1, made in the form of a disk, and two brackets 2, attached at 20 with the center of the screws to the base. The brackets 2 are cut along a screw line with a certain angle of ascent. The elevation angle of the helix depends on the height and diameter of the cutter.

25 Saw 3 rests on the bracket at a time chosen for it with the required angle to the forming cutter and fastens the screwgaai. Tooth 4 is mounted on the cutter body and is made of wear-resistant

30 staples,

X CSSppHas mounted milling cutter equals cneoiyiowiM way.

Ra (The surface of the brackets is installed on the helical LINE / which, by cutting the wood fiber, small particles simultaneously form the transverse and face face machining of the seam; Thus, the need for a special trimmer is eliminated. the edge of the brick is gradually being made without causing any noticeable tears of the fibers, the need for an artificial backing of the wood is eliminated. The fit of the incisors of the cutting elements is formed according to The last ones in the grooves are selected in the brackets at the right angle to the cutter shapes. The selected shape of the cutter creates a maximum resistance to rotation, which significantly reduces the noise when the cutter operates.

This description refers to a milling cutter for processing a rectangular rebate, where removable brackets are installed at a right angle to the base. For machining the ends of the bars at an angle, it is different in lFB in that the removable brackets are attached at the right angle to the base -. -.:,.,; ,

Thus, the application of the proposed team mounted cutter for individual installation will allow to avoid the loss of the processed bars in the break because of the chips at the exit

tools made of wood, do not resort to artificial backwater. The expected technical and economic effect from the use of the proposed invention will be 7529 rubles. .

Claims (2)

1. Collecting an adress mill for machining the ends of wooden bars, including a base, brackets and fixed multi-cutters, characterized in that, in order to prevent chipping, without artificial selection and formation of the end surface of the seam without undercusers, multi-cutter elements are made in the form of segments of band saws and fixed to the side surface of the brackets along a helical line. 2. A milling cutter according to n.lj about tl and h and ya with the fact that, in order to impart the necessary undercut incisors of multi-cutters, on the brackets of which grooves are made, in the latter are installed pieces of band saws. Sources of information taken into account in the examination 1. Author's certificate of the USSR 472791, cl. B 27 G 13/00, 1973. 2.Grube A.E. Woodcutting tools. -M., 1971 p.213 (prototype). . ft -FiVfiE i-: i :: -