SU511146A1 - Device for turning lathe for machining complex surfaces - Google Patents

Description

CTHj can be done in any way according to the theory of machines and mechanisms.

The required profile is processed after adjustment of the crank device, which with the help of the crank disk 6 and rod 15 imposes additional movements to the differential 8. When

Increase the number of crank f

cr

increases the curvature of the concave or

bulge. At 0 process

cr

straight line surfaces.

If the number of cutters in the tool head 2 O is 2, and the ratio of the number of revolutions of the tool head

P will be K,

u - and details

L

then the surface to be treated will in general be a polyhedron with the number of faces / 7r Z K

Depending on the number of faces and helix helix of the polyhedron, which is to be obtained after processing, choose the gear ratio of the engaging gears.

So; For example, when machining a square profile-helix shaft, the reduction ratio K (with Z 2) of all four gears of motion selection should be chosen so that it is a value slightly less than 1; 2.

When installing four gears 2,3,4,5 selection of movements with the number of teeth, respectively, equal to 12 O, 59, 57, 58, the gear ratio K was 1: 1,9988, which ensures the rotation of the kVA, of the profile for one revolution of the part 26 ° In this case, for each turnover

the workpieces, formed by rolling the cutting head 2O with the workpiece, rotate relative to the previous section by 26 °, forming a spiral surface with an angle of elevation of the helix depending on the value of the supply and cutting tool 20 for one revolution of the part.

Thus, the device allows

without changing the tooling elements, it is easy and simple to change the machine to the processing of an impassable profile. And machining parts without a keyless connection on this machine (for example,

triangular, square profile) will eliminate the keyway and spline milling operation in mechanical engineering. All this will reduce the labor intensity of manufacturing parts with a complex profile.

Claims (1)

Formula isotopic A device for a lathe for machining complex surfaces, representing a tuned kinematic chain part — a tool connected to a machine spindle and connected to a tool holder attached to a longitudinal support through a slit shaft characterized in that, in order to expand technological capabilities and increase productivity, the kinematic chain part is a tool equipped with a crank mechanism associated with a differential, the output shaft of which is connected to the shaft; mounted on a longitudinal caliper and bearing tool - cutting head. FIG. one 15 FIG. J 1410 fff 12 eleven / J ig