SU264570A1 - TAPE STRIP - Google Patents

Description

The described tape device can be used for anodically-mechanical cutting of conductive material blanks that are difficult to process in the usual way.

Tape-cutting mechanisms for apode-mechanical machine tools are known, sabukened vedodem and driven pulleys with cylindrical rims and a mechanism for periodically rocking the cutting branch of the tape in the plane of the slit of the workpiece being cut.

To simplify the mechanism mentioned, the axis of the rims of the pulleys in the described tape-making device is set with respect to the axis of their rotation at acute angles equal in magnitude and opposite in sign.

FIG. I shows the device described; in fig. 2 shows the arrangement of the axes of rotation and the axes of the cylindrical surfaces of the pulleys; in fig. 3 - movement of the cutting branch in the plane of the slit of the workpiece being cut in different phases of the full swing cycle.

The device comprises a driving pulley 1 having an axis of rotation 2 and an axis 3 of the cylindrical surface of the rim, which intersect each other at an acute angle — a; V-drive gear 4, electric motor 5, driven pulley 6, also having a rotation axis 7 and an axis 8 of a cylindrical surface

pulley rims that intersect with each other at an acute angle of + a, equal in magnitude to the intersection of the pulley axes / (but opposite in sign).

Arrow 9, applied on the driving pulley /, and arrow 10, applied to the driven pulley 6, show how the pulleys are mounted before putting on the endless belt-tool II on them. The tensioning mechanism 12 of the tool mite with the mechanism 13 for adjusting the tension pulley from the belt overlap of the tool is rigidly connected to the axis of the driven pulley. The guides 14 for the tool belt, the electrolyte delivery device 15 and the luminaire device 16 are fixed to the device body. Cutting the billet P is located between the driving and driven pulleys. Counterweights 18 for dynamic pulley balancing are fixed on both sides of each pulley.

The device works as follows.

When the motor 5 is turned on, the tape tool // acquires movement in one direction with a speed of 16-20 m / s. Due to the intersecting axis of rotation and the axis of the cylindrical surfaces of the rims, the tape-tool begins to rotate periodically (see Fig. 3) (the GF point characterizes the position of the axis 3 of the cylindrical surface of the driving pulley rim /

planes Hi on one side of the plane of Yaz, passing through the axes of rotation of the shchivs / and 6; ZP point characterizes the position of the axis 8 of the cylindrical surface of the rim of the driven pulley in the Us plane on the other side of the plane Jaz).

The wiggle is due to the fact that the cylindrical surface of the rim of the driving pulley, and with it the part of the belt adjacent to the rim, make periodic oscillations out of phase with the vibrations of the part of the belt adjacent to the rim of the driven pulley.

During operation of the anode-mechanical machine, the described device provides cutting of the workpiece with the formation of the convex surface of the cut.

Subject invention

Tape-cutting device, for example, to anodic-mechanical machine tools, equipped with leading and driven pulleys with cylindrical rims and a mechanism for periodically waving the cutting branch of the tape in the slit plane of the workpiece being cut, characterized in that, to simplify the mechanism, the rims relative to the axis of their rotation at acute angles equal in magnitude and opposite in sign.

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