SU1255302A1 - Method of working surfaces of revolution - Google Patents

Description

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The invention relates to metal processing and can be used in the processing of annular grooves with a variable Profile on the surfaces of rotation.

The purpose of the invention is the expansion of technological capabilities by the possibility of processing annular grooves with a variable profile.

FIG. 1 shows the processing scheme; in fig. 2 is a view A of FIG. 1 in FIG. 3 is a view B in FIG. one.

The machining is carried out with an end milling cutter 1 with a radius of arrangement of the teeth R. The milling cutter is positioned relative to the workpiece 2 so that their axes of rotation intersect at a right angle.

Milling cutter 1 is informed by the movement of the tangential feed in the direction of billet 2, which is rotated. After a period of time equal to half the rotation of the workpiece 2, the milling cutter 1 occupies a position relative to it, in which the distance L between the axes of their rotation is not less than the radius R

2

neither the cutter teeth, i.e. in the final position of the tool after the first half-cycle of processing, in order to obtain a groove profile, the ratio L R must be fulfilled. This position of the cutters corresponds to the largest cross-sectional area of the groove. Then the feed direction S is reversed and during the subsequent half-turn of the workpiece 2, the milling cutter 1 is returned to its original position corresponding to the smallest cross-sectional area of the groove.

Thus, the feed motion of the cutter is reciprocated at a frequency equal to the frequency of rotation of the workpiece. If it is necessary to groove with a periodically repeating profile, the frequency of the reciprocating motion may be a multiple of the frequency of rotation of the workpiece.

The proposed method can be carried out using end mills.

Vida

2

In id

Editor S. Pekar

Compiled by M. Kolbich Tehred L. Serdyukova

Order 4751/12 Circulation 1001Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

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production and printing company, Uzhgorod, st. Project, 4

Fig.Z

Corrector I. Muska

Claims (1)

METHOD FOR PROCESSING ROTATION SURFACES with a face mill, in which the axis of the latter is crossed at right angles with the axis of the workpiece, the latter is informed of rotation, and the feed is moved in the tangential direction 'perpendicular to its axis, characterized in that, in order to expand technological capabilities by providing processing of ring grooves with a variable profile, the feed movement is carried out reciprocating with a frequency equal to the rotational speed of the workpiece, and the progressive movement of the cutter to the workpiece is stopped ayut when the distance between the axes of the cutter and the workpiece is not less than the radius of the cutter. FIG. 1