SU61947A1 - Adaptation to the backing machine for the cutting of globoidal hob cutters - Google Patents

Description

Adaptations to backing machines for cutting out globoidal hobs, made in the form of a slide, carrying an additional table with a tool holder, which receive rotation from the running roller, are known.

In the proposed device, to communicate the caliper of an additional pivoting movement, a worm gear, which is part of a worm gear pair of said gear, is placed on the axis of the additional table, receiving reciprocating movements from the cam. The drawing shows a globoidal scarlet worm. The table /, drive roller 2 and cam roller 3 are parts of the machine itself.

The fixture consists of supports 4 and 5 and an additional table 6 with a tool holder 7. The caliper 4 is mounted on the guide table of the backing machine. In its grooves can move, in the direction perpendicular to the line of the centers of the machine, the caliper 5. Additional table (5, reciprocating, also in the direction perpendicular to the line of the centers of the machine, moves in the grooves of the caliper 5. In a special sump This caliper is placed on the toolholder trunnion 7. Caliper J is moved manually by screw 8 with handle 9 rotating in a nut fixedly fixed in tidal 10 caliper 4. The end of screw 8 is fixed in support 5 by pin 11 so that the screw can rotate It is only relative to the caliper 5, and it cannot move progressively relative to it. The tool holder 7 performs the main rotational movement and the occipital rotary movement and can be made in the form of two ordinary supports (longitudinal and transverse), moved manually by the tool. (Cutter or grinding tool a circle is fixed on the upper caliper. On the running roller 2 there is fixed a bevel gear 12 interlocking with the bevel gear 13 of the roller 14 rotating in the under bushes hardened in the caliper. 4. In the same caliper 4, there is a conical shchestren 15 that engages with a conical bristle 16, seated

No. 61947

on the roller 17, which rotates in the bearing bushing of the caliper 5. On the second coic, the roller 17 has an idler gear 18, coupled with gear 19 mounted on the roller 20, vrashayush; em in bearings 21, mounted on an additional table 6. In the same table jammed the worm is 22, the worm gear 23 is driven, which is mounted on the roller 24 of the holder 7. The pin of the roller rotates into the bout of the tide 25 from the shaft 5. When this caliper is moved, the bevel gear 15 slides along the shaft of the roller 14, leaving all time in engagement with conic The gear 16. The occipital turns are communicated to the holder 7 by an additional table 6. On the cam roller 3 there is a bevel gear 26 coupled to the bevel gear 27 of the roller 28. At the other end of the roller there is a gear 29, linked to the gear 30 of the cam roller 31, the end of which sits interchangeable cam 32. This cam acts on roller 33 fixed in additional table 6. Moving along with bearings 21, roller 20 and screw 22, additional table communicates additional turns necessary for replining The main rotation is carried out with the help of a worm gear 23 and a holder 7. The returnable rotational mixing of the table occurs under the action of a spring 34, the pressure of which is regulated by a sleeve 35 and a screw 36.

Subject invention

Adaptation to the backing machine for cutting out globoidal hobs, made in the form of a slide, an additional table with a tool holder, rotating through the gear from the running roller, characterized in that from the worms to the axis, an additional table reciprocating from the cam to communicate to the tool holder an additional rotary movement.