SU1337209A1 - Hobbing cutter - Google Patents

Abstract

The invention relates to the field of mechanical engineering and can be used in the machining of gear wheels. The aim of the invention is to increase tool durability and processability of development by reducing resonant vibrations when machining gears. Worm cutter contains lead-in Ljg and L-p profiling parts, with chip grooves 1 on the lead-in part inclined at an angle to the mill axis, and the front surfaces of the teeth of the feed part are offset relative to the front surfaces of the teeth of the main part. Structural grooves 2 on the profiling part are made at an angle to the axis of the cutter, equal to the angle of inclination of the chip grooves on the lead-in part. 1 il. /. (L oo oo go o co

Description

113

The invention relates to machine building and can be used in the machining of gear wheels.

The purpose of the image; the shadow is to increase durability and manufacturability by reducing}; Reasonable oscillations when machining gears.

The drawing shows a milling cutter, about

BHTU

Worm cutter contains lead-in LJ, and profiling L pp parts, with the stream groove 1 on the lead-in part on the jumble under the elbow to the cutter axis, and the middle surfaces of the lead teeth. the parts are offset from the front surfaces of the teeth of the profiling part (not shown). Structural grooves 2 on the profiling part are made at an angle to the axis of the cutter, equal to the angle of inclination of the chip grooves 1 on the lead-in part. Tooth of the lead-in part b. „„ First

3 W l

cut, cut into the back, but not the profile of the tooth cavity. Profiling: the tooth cavity of the ocyine is inserted. teeth, located on the irofilating part I., p.

On the lead-in at the finishing mills, the front angle is made positive a. On the hofofil.fyu1; she - zero, that

Editor N.Slobod nickname

Compiled by A. Gadatelev Tehred M. Didyk

Order 4080/13

Circulation 974 Subscription

VPIIPI USSR State Committee

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

Production and printing company, Uzhgorod, l, Proektna, 4

372092

It contributes both to an increase in the durability of the lead-in part operating under the most severe conditions and to the preservation of the accuracy of the profiled teeth.

For optimal loading of the cutting edges of the cutter on the front surface, it is possible to perform a variable front angle on the lead-in part, and the size of the front angle can vary, with an extreme dependence, where the maximum point is on the most loaded tooth of the worm cutter.

Claims (1)

Invention Formula Worm cutter containing lead-in and profiling parts with chip grooves, with the chip groove on the lead-in part tilted at the angle of the node to the mill axis, and the front surfaces of the teeth of the lead-in part are offset from the front surfaces of the teeth of the main part, which is different durability and manufacturability, chip grooves on the profiling part are made at an angle to the mill axis equal to the angle of inclination of the gutter grooves of the lead-in part. Proofreader V. But ha