SU1329929A1 - Drive of device for gas-flame cutting of articles - Google Patents

Abstract

The invention relates to the field of gas cutting. The aim of the invention is to increase productivity by increasing the drive speed and accelerated changeover when changing the shape of the workpiece. For this, the tapered drive roller 3 is mounted on the plug 4 with the possibility of its rotation. One of the forming roller 3 is perpendicular to the forming ring 2. The roller is installed in the right direction when the drive is adjusted, depending on the shape and wall thickness of the workpiece. An abrupt change in the radius of the ring and, consequently, an abrupt change in the cutting speed is possible due to the perpendicular arrangement of the forming roller relative to the forming rings. 3 il. W (/ cfuff.1

Description

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The invention relates to gas cutting, and more specifically to ancillary devices for guiding the burner and adjusting its speed when cutting shaped parts.

The purpose of the invention is to increase the speed of the drive.

FIG. 1 shows the drive, general view; in fig. 2 is the same, top view, in FIG. 3 is a plot of speeds at the interaction of the roller and ring.

The drive contains a faceplate 1, on which is fixed a flexible friction ring 2, which interacts with a conical drive roller 3; One of the forming conical surface of the roller is perpendicular to the image of the ring. A fork 4 is installed on the roller with the possibility of its rotation relative to the axis of fastening on the lever 5. To install the fork in the predetermined position, there is a lock 6.

The drive works as follows

In accordance with the shape and thickness of the walls of the workpiece, its contour is divided into a number of sections. For each section, the cutting speed V is chosen as the maximum permissible. The angular velocity of rotation of the product in these areas is then calculated (see FIG. 3).

V;

 R

)

ed

where K „. - radius of the contour of processing - L

product.

correlation

radii

Ig

(Mi cos (9 p.

R

with

In accordance with the value, the ring is adjusted, giving it the appropriate shape. Then the tapered roller 3 is pressed against the ring 2 and the drive is started. When the roller is rolled around the ring, the rotation speed of the faceplate and the product attached to it changes according to the law of variation of the ring profile and tapered roller radius, while this automatically maintains the specified speed of movement of the workpiece at a constant rotation speed of the engine. When tuned to a new part, the operations are repeated in the sequence indicated.

In the proposed drive design, a quick (jump-like) change of the ring radius is possible, which ensures the most efficient formation of high-speed modes and, when processing products with a rapidly changing profile, it can significantly increase the speed of their processing.

Claims (1)

Invention Formula The drive of the device for gas-flame cutting of products containing a flexible friction ring and a drive conic roller mounted with the possibility of interaction with the ring, which is characterized by the fact that the drive is equipped with a rotatable fork mounted on the roller, and one of the forming conical surface of the roller is perpendicular to the forming of the ring. fig fie.z Editor E. Kopcha Order 3521/15 Circulation 974 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production polygraphic enterprise, Uzhgorod, Projecto st., 4 Compiled by E. Tyutchenkova Tehred L. Serdyukov Proofreader V. But ha