SU108752A1 - Fitting to a gear shaping machine for cutting non-circular gears - Google Patents

Description

Known gear-cracking craHKii for cutting the external and internal gear round wheels have a south-facing device for creating relative running movement and aligning the common normal at the point of contact of the taper centroid and the workpiece with the direction of the dragging of the workpiece during the reverse of the tuck.

The device of the proposed device is simple, which allows the use of the design of gear shaping machines with minimal modifications of the cyHiecTByiOHUie.

This is achieved by using two copiers that move the axial rotation of the workpiece and the groove in two mutually perpendicular directions, one of which coincides with the direction of the tapping of the groove. At the same time, the blade and the workpiece rotate evenly.

FIG. 1 schematically shows the device mounted on a gear-shaping machine; in fig. 2 - kinematic device diagram.

The workpiece / and Conier 2 is installed on the table, connected to the sled 4, which are moved along the guide rails 5.

Copier 2 is constantly in contact with the pusher roller b under load 7.

The billet receives rotation from the overall kinematic chain of the machine through the 8-division guitar, shaft .9, additionally introduced guitar 10 interchangeable wheels, composite shaft //, tapered brush 12, 13, slot shaft 14, worm to /.) And worm gear 16.

Removal of the workpiece from the bank during the reverse idle course of the latter is carried out by table 17 of the tank. This movement is ensured by the presence of the slit coi. T, and the elimination of the composite shaft 11.

A progressive alternation of the caliper support is done by means of a copier l8. installed in place of the usual to lacquer embedding. The copier receives a rotational movement from the radial pitch guitar of the machine through the worm to /.9 and the worm gear 20. The If copier, unlike the conventional insertion fist, is moving the caliper li for a considerable distance, the value of which depends on the parameters of the initial curve (centroids) chopped non-circular wheel.

Subject invention

Adaptation to gear shaping machine for cutting non-circular gears of external and internal gears, about t and h and; e es that in order to simplify it

to create a relative running-in motion and to align the common normal at the point of contact between the centroid of the dolb and the billet with the direction of removal of the dolb or the billet during reverse idle of the dolb; it uses two copies, which move the axis of rotation of the workpiece and the groove in two mutually perpendicular directions, one of which coincides with the direction of the hole retraction, and the shaft and the workpiece rotate uniformly.