RU1785868C - Method of positioning cylindrical parts - Google Patents

Description

and,

or tg to K

Another condition for the movement of the part 2, from the point of view of ensuring its guaranteed continuous rolling-in of the surface a of the pipe 1, is the following inequality:

di d + 1, mm (8)

d2 d + S, mm, (9) where d is the diameter of part 2 ,. mm;

di is the lower inner diameter of the pipe 1, mm;

d2 is the upper inner diameter of the pipe i, mm.

Based on inequality (8) and (9), it follows that the cone angle of the surface a must satisfy the condition:

d2-di

Ti - tg2 T

where I is the length of the pipe, mm

Inequalities (7) and (10) are combined into a double inequality:

From inequality (11) it follows that in order to provide an increase in the distance of movement of parts, i.e., to provide the possibility of increasing the length of the pipe, it is necessary to reduce the friction coefficient.

A reduction in the coefficient of friction between the moving parts and the inner surface of the pipe can be achieved by coating this surface with antifriction material or PU. /

thereby introducing lubricant microparticles into the compressed air.

Thus, the proposed method allows the cylindrical parts to be moved to a distance sufficient to use this method for interoperative movement of, for example, assembled parts in assembly machines.

10 The proposed method is expediently used in assembly machines in which the assembly process is carried out by air-vortex orientators. This will increase the level of technical unification.

Claims (1)

SUMMARY OF THE INVENTION A method for moving cylindrical parts, wherein the part is placed in a vertically mounted 20 pipe from the side of the geometric top of its inner conical surface and act on the part with a swirling stream of compressed air, characterized in that, in order to expand technological capabilities by ensuring the movement of parts over large distances, they use the pipe, the angle "of the cone of the inner surface which satisfies the condition 30K 4Jjsf where K is the friction coefficient between the outer surface of the part and the inner surface of the pipe; 35 I - pipe length, mm, moreover, the inner conical surface of the pipe is coated with antifriction material or lubricant microparticles are introduced into the compressed air. /