SU125113A1 - Cutter fly - Google Patents

Description

In individual production, the cutting of the teeth of the worm wheels is usually performed by a separate cutter (the so-called cutter-blade) using tangential feeds on the gear milling machines. Conventional incisor-blades accurately reproduce the profile of a worm only in its radial planes. Since the wheel teeth are shaped with a cutting tool in planes perpendicular to j. the axis of rotation of the wheel, the cutter-blade provides machining accuracy only in a single common plane passing through the center of rotation of the coil perpendicular to the axis of rotation of the wheel.

In addition, the cutting of the worm gears of this kind with incisors is connected with the need to manually fit the teeth of the wheel along the turn of the screw, carried out by cutting down the thinned metal.

In order for the metal to be completely cut off when the wheel teeth are shaped with a tool that operates with a tangential feed, it is necessary that this tool cut not in one line, but in a certain area.

A distinctive feature of the proposed cutter-bat is that it has several cutting edges located along the screw surface of the producing worm.

Such a multi-blade cutter cuts a tooth to a better quality. This allows you to reduce manual work on the fit of the teeth.

FIG. 1 schematically shows a cutter-bat, side view; -la FIG. 2 - front view.

The cutter-fly is made in the form of a mandrel / and multi-cutter cutter 2 with two, three or four cutting edges spaced at some angle, calculated by the designers of the tool.

Subject invention

The blade cutter for cutting black wheels using the tangential feed method, which is designed so that, in order to improve the quality of cutting, it has several cutting edges located along the screw surface of the producing worm.