SU1399013A1 - Method and apparatus for working spatial surfaces - Google Patents

Abstract

The invention relates to metal cutting and can be used in the formation of complex spatial surfaces of sections in the holes of body parts. The purpose of the invention is to increase accuracy and productivity. The formation of the spatial surface in the housing I is carried out by a milling cutter 2, the axis of which is perpendicular to the axis of the hole, in one pass. The milling cutter reports rotational movement from spindle 9 through rod 7 and 8, feed movement 9. When spindle 9 moves along the Z axis through rod 7, bearings 10, holder 6, spiral grooves of the holder, and i (L

Description

 J j

fj 7 J .Л I / (ч Г

with CO with

00

the rollers 1 I, the mandrel 5 tool reported rotational movement around the axis of the hole. At the same time in the hole

with a diameter of 0, a spatial breakdown with a diameter of 0. 2 cp, f-crystals, 3 sludge is formed.

one

The invention relates to metal cutting and can be used in shaping the complex spatial surfaces of grooves in the holes of body parts.

The purpose of the invention is to increase accuracy and productivity in processing edge cuttings in openings of body parts by reducing the number of tools in the number of passes and control programs.

Figo shows the layout of the milling cutter and the workpiece; figure 2 - the device during processing, the section; on fig.Z - section aa in figure 2.

The formation of the spatial surface in the housing 1 is carried out by a milling cutter 2, the axis of which is perpendicular to the p-axis of the aperture after the passage. . The mill has a rotational movement around the axis, a feed movement S and a rotational movement around the axis of the hole. In this case, a spatial groove with a diameter D is formed in the hole with diameter D. The cutting is carried out both from the side of the concave part and from the side of the convex part of the part.

The device for processing spatial grooves is made in the form of a hollow mandrel consisting of two parts. The stationary part 3 of the mandrel is fixed on the spindle head 4. The spindle head 4, together with the mandrel, has the possibility of axial movement. The second part 5 of the mandrel is made with an outer diameter equal to the diameter of the hole being machined and is installed with the possibility of rotation

around osio

In the inner cavity of the mandrel, the holder 6 is axially displaced to move. Inside the casing 6, a composite rod is installed, consisting of parts 7 and 8. Right part 7 in stock

five

five

0

50

five

five

ka is installed in the sliding spindle 9 of the machine by means of ilQ bearings. Spiral grooves are made on the outer surface of the cage 6, which interact with the pivoting rollers 11, fixed with screws 12 on the pivot part 5 of the mandrel. The collar 6. is installed in the fixed part 3 of the mandrel by means of the bearing 13. The machine spindle through the composite rod rotates the milling cutter 2 and simultaneously while moving along the Z axis moves the ferrule 6 through the rod and the bearings 10. The spiral grooves of the ferrule 6 interact with the rollers 11. In this case programmable movement of the spindle on the length L is converted into rotational movement of the mandrel with the cutter 2 around the axis of the hole. At the same time, the mandrel, with programmable movement of the spindle head A, feed movement is reported.

Claims (1)

1. A method for treating spatial surfaces in which a conical cutter imparts a rotational movement and a feed movement, characterized in that, in order to increase accuracy and productivity in processing grooves in the holes, body parts, the cutter axis is positioned perpendicular to the axis of the hole being machined and reported to it additional rotation around the axis of the machined hole. 2, a device for processing spatial surfaces, containing a spindle head, a sliding spindle, a console mounted on the headstock carrying a rotatable milling head, the axis of which is perpendicular to the axis of rotation of the spindle, characterized in that, in order to improve the accuracy and productivity during machining grooves in the holes of the housing parts, the console is made in the form of a hollow composite mandrel, the first part of which is fixed on the spindle head and the second part is mounted concentrically with the ditch can be rotated relative to it, while the device is equipped with a clip installed in the inner cavity of the mandrel, placed axially displaceable, in a cage, a rod made of two parts mounted for mutual movement, driving swivel rollers mounted on the inner surface of the swivel part of the mandrel, which are designed to interact with the spiral grooves executed on the outer surface of the cage.