SU801989A2 - Routing machine for working metallurgical continuous casting mould walls - Google Patents

Description

The goal is achieved by the fact that the described machine is provided with an additional angular head with a face cutter, the spindle of which is located in the horizontal plane at an angle to the rails of the stand, and the contour of the working surface of the tip of the copier interacting with the arc valve. the profile of the projection of the working part of the face milling cutter on a plane perpendicularly forming the cylindrical surface of the treated wall.

In addition, the slider is provided with additional ball guides for the tip of the indicated device,

Fig, 1 shows a machine, top view; in fig. 2 - view A of FIG. one; Fig. 3 shows schematically the inclination of the end mill and the projection of its working part onto a plane perpendicular to the generatrix of the processed cylindrical surface of the part.

The additional angle head 1 is fastened to the machine tool quill 3 through the adapter flange 2 in such a way that its axis is rotated in the horizontal plane by the calculated angle d- relative to the rails of movement of the stand 4 depending on the radius of curvature of the part and the diameter of the cutter. The tip 5 of the copying device 6 (FIG. 2) is in contact with the arc copier 7 with its working surface 8, the contour of which corresponds to the projection of the working part 9 (FIG. 3) of the face milling cutter on a plane perpendicular to the generatrix of the cylindrical wall surface being processed. For unloading the copier from the weight of the tip 5, there are additional ball guides 10 mounted on a slider 11

Processing of cylindrical surfaces on the proposed machine are as follows.

In the spindle of the angle head 1 ustnavlivayut carbide face milling cutter. Since the spindle axis of the angular head 1 is rotated in a horizontal plane at a design angle d-with respect to the guide bars of the rack 4, the projection of the working part 9 of the end milling cutter onto the plane perpendicular to the generator of the cylindrical surface being machined is an ellipse (Fig. 3) with parameters

a, slnot,

where a is the semi-major axis of the ellipse;

in - the semi-axis of the ellipse is small; Df - working diameter face

cutters;

(W. is the inclination angle of the milling cutter. At a certain width of the strip section processed in a single pass, the radius of curvature of the ellipse is close to the radius of the cylindrical surface to be machined. The setting is the horizontal feed of the vertical stand of the machine along the 5 axis X. At the end of the passage

turning on the vertical (periodic) feed of the headstock along the y axis, and the copying carriage rigidly connected with it — along the Z axis. In this case, the tip 5 of the copier 6 interacts with the arc copier 7 with its working surface 8, as a result of which the cutter moves along the z axis.

Then a horizontal pass is repeated. The treatment of the entire cylindrical surface is carried out by horizontal constructions.

Claims (1)

1. Copy milling machine for processing continuous metallurgical molds casting on auth. St. No. 510323, which is different in that, in order to increase productivity, the machine is equipped with an additional angle head with a face mill, the spindle of which is located in the horizontal plane at an angle to the rails of movement of the stand, and the contour of the working surface of the tip of the copier interacting with the arc copier is made in accordance with the profile the projection of the working part of the face milling cutter onto the plane perpendicular to the generatrix of the cylindrical surface of the wall being machined, 2, Machine pop, 1, characterized in that, in order to unload the copier, the slider is provided with additional ball guides for the tip the above device. Sources of information taken into account in the examination 1, Copyright certificate of the USSR-. No. 510323, Cl, B 23 C 1/16, 1975. FIG. I