SU27268A1 - Copy propeller milling cutter - Google Patents

Description

In the proposed copy milling device for treating propellers, a head is used that carries the workpiece, to which, together with the head, a swinging motion is communicated, thanks to a ball joint

heads with a shaft, from a copier located on a table moved up and down by influencing it on rollers whose axes are connected to the head.

In the attached drawing of FIG. 1 shows a side view with a partial cut; FIG. 2 - view from above.

The proposed device consists of a head 18 with a mandrel 19 and a sleeve 20 on which the nut to be processed is fixed with a nut

.propeller screw. The head 18, connected to the vertical shaft 5 by means of a ball joint 17, bears on itself three rollers 16, supported by copiers 15,

.. located on the worm gear 13, which lies on the table 12. The gear 13 is coupled with the worm gear on the shaft 14, equipped with a handwheel 31, Three guides II are attached to the table 12, sliding along the uprights 10 and equipped with rollers 9, resting on a wedge 8 fixed on the drum 7, which is mounted on the shaft 5 and fastened with a key 28. At the lower end of the shaft is worn gear 29, coupled with a worm on the shaft 4, which through rotation of bevel gears 3 and 2 is rotated from shaft 1 with flywheel 30.

The milling cutter 21 is mounted on a cantilever roller 24 with a longitudinal key, and I can: move in spindle 25. onto which a three-stage pulley is mounted. A rolling pin 23 is fixed in the upper part of the bed 27, which serves as a support for the frezer.

The propeller to be machined is fastened with a nut on hub 20 and processed by a milling cutter 21, with the following movements being attached to the screw: rotation around a vertical axis by means of a shaft 5 receiving rotation from shaft 1 with a flywheel 30; lifting - with the help of acting on the table 12 through, through the rollers 9 wedges 8 on the drum 7, receiving rotation with the shaft 5, and tilting - using the rollers 16, rolling on the copier 15, rotated around the vertical axis together with gear 13 while shaft 14 with flywheel 31.

The subject matter of the invention.

 Copy milling device for processing propellers, characterized by the use of the head 18, bearing on the mandrel 19 and the sleeve 20, the workpiece, swinging movement

which, together with the head 18, communicates through the ball joint 17 of this head 18 to the shaft 5 from the copier 15 located on the table 12 being moved up and down by acting on the rollers 16, whose axes are connected to the head 18.J

FIG.1

FIG. 2