SU844126A1 - Apparatus for working spherical surfaces - Google Patents

Description

one

The invention relates to a machine tool industry, namely to devices for machining internal and external spherical grooves, for example, bearing rings.

A device for treating spherical surfaces comprising a housing, a carriage with a tool restraint mounted with the possibility of plane-parallel movement relative to the housing, and a driving movement of the carriage 1 are known.

A disadvantage of the known device is that it provides processing only convex spherical surfaces.

The aim of the invention is to expand the technological capabilities of the device.

For this purpose, in the proposed device, the carriage is connected with the drive of its movement through the cranks with the fingers and the rack-and-pinion gear, and on the fingers of the cranks are installed with the possibility of rotation of the sleeve with eccentrically offset openings in contact with the carriage.

Such a device design provides processing of both convex and concave spherical surfaces and stepless adjustment of the radius of the treated sphere in a wide range.

FIG. 1 shows a general view of the device from the side of the carriage; in fig. 2 - section aa of FIG. 1; in fig. 3 - section bb FIG. 2; in fig. 4 is a diagram of adjusting the processing radius.

The device includes a housing 1 with a lid 2, in which a carriage 3 with a holder 4 with a cutter 5 and rotary crankshafts 6 are mounted with a parallel-parallel movement. On the fingers 7 of the curtains 6 there are eccentric bushings 8 fixed with nuts 9. The bushes 8 interact with the carriage 3. On the cranks 6 are made teeth 10, interacting with the teeth 11 of the rod 12 of the power cylinder 13. In the cylinder 13 on both sides of the piston 14, working cavities 15, 16 are formed.

The device works as follows. Sleeves 8 rotate on fingers 7

and secured with nuts 9 in a certain position corresponding to the radius R of displacement of the cutter 5. The device mounted on the support of the machine is brought to the part 17 so that the cutter 5 enters

into the hole of the part 17. The caliper of the machine with the device is mounted on a hard stop, which determines the position of the cutter 5 relative to the part 17. By applying working fluid to the cavity of the power cylinder 13

piston 14 with brush 12 moves and

through the rack and pinion gear the cranks 6 will rotate, while the carriage 3 performs a plane-parallel movement relative to the housing 1, and the working edge of the cutter 5 describes the movement along a circular arc.

Claims (1)

Invention Formula A device for treating spherical surfaces, comprising a housing mounted in the housing a carriage with a tool hanger, having the possibility of plane-parallel movement relative to the core The drive and the movement of the carriage in the form of a power cylinder, characterized in that, in order to expand the technological capabilities, the carriage is connected with the drive of its movement through the curvilix with the fingers and the rack and pinion gear, and on the fingers of the cranks are mounted with the possibility of rotation of the sleeve with eccentric offset holes in contact with the carriage. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 182471, cl. B 23B 12/01, 1963.