SU1680415A1 - Multirow burnisher for flattening and straightening skelps - Google Patents

Description

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possibilities of individual adjustment of its diametrical size The internal rows of rolling are made with the possibility of adjusting their axial position. During operation, due to the geometrical characteristics of the rolling zone on the convex side over the floor of the 01 version, tension is created. than the tension on the concave side of the surface of the inlet opening. Due to the difference a cie of the plastic deformation penalty, the process of straightening will take place along with the rolling process in 4 seconds.

The invention can be used in any branch of machine and instrument construction as for rolling holes 7a and for rolling while straightening tubular blanks.

The purpose of the invention increase the efficiency and effectiveness of the editing process.

FIG. 1 shows the rolling construction, axial section, FIG. 2 is a diagram of the splitting process.

On a central mandrel f with a small gap, there are two pairs of bushings 2, on the conical surfaces of which are supported deforming elements in the form of balls 3 of large diameter. The nuts 4, the threaded sections of the mandrel 1 screwed in pairs, serve to individually adjust the diameters of the two extreme (supporting) rows of balls. Between the extreme rows of W & Riframe 1, there is installed one 5 with a radial clearance of 5 in each. 1e, the surfaces of the sleeves 5 and 5 are supported by balls 7 of a large diameter, which form; inner (right) row. Nuts 8 threaded end shank w / lkm 5, deaf r for individual adjustment of the diameter of the right row of balls Wigs 3 and 7 are held by the pair 9.

In the axial hole of the mandrel 1 there is a ha 10, to the right end of which, a bolt 11 attaches a nut 12, screwed onto the threaded end of the mandrel 1. Pin 13 is pressed into the diametrical holes of the sleeve 5 and thrust gi 10 and freely pass through the grooves 14 of the mandrel I.

When the nut 12 rotates, it moves in the axial direction and, through the bolt H, pulls along the pull 10, which through the pin 13A, the sleeve 5 moves in the axial direction the inner right row of balls. In order that the separator 9 does not interfere with this movement, shelles 15, the number of which corresponds to the number of balls 7. In addition, chases 16 are made to access the nuts 8 by adjusting the diameter of the right row of balls 7,

The device works as follows

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Before the work of rolling, I tune g. The diameters d of the reference rows tune to the minimum chat.

imip - d do ™ -0005 0,02 mm | .ce dent the diameter of the hole of the workpiece

The diameter D of the right row adjusts the nominal tension ifl, which, when machining a tubular billet with a straight line ion axis, provides effective smoothing (or hardening) of the hole surface taking into account the material of the workpiece

s D-oo and.

With the introduction of rolling into the hole of the curved shutter nat i, it distorts from the convex surface from the version, increases to h 1n, and from the side of the concave surface, the hole decreases to, 1 1n.

Comparing the value of Rh, a, x with the maximum allowable for a given material. If the value of ii is exceeded, the maximum allowable ALE of the material doesn’t remove the right row of balls from the position (Fig. 2) in position to those gyur, until it is non-personal and will not enter the permissible limits

After the rolling is ready for work, the workpiece and the rolling are informed by the mutual movements of rotation and axial feed and the implementation of kg, the rolling of the hole. At the same time, the degree of plastic deformation on the convex side of the hole will always be greater than on the concave side of the hole until I 2. In connection with this, simultaneously with the rolling, npouecc straightening will occur, which automatically stops when the axis of the tubular axis is straight. Details After this, the process of normal rolling continues.

Claims (4)

Invention Formula  Multiplexing of the bottom and pendulum with the simultaneous straightening of the tubular heading, containing the central frame, the separator that grasps it with a deforming, / elements of the form of rolling bodies, about i and h; so that, with the whole-oo-nyechu; - the quality and efficiency of the pro:; , h edit, tacheni located at least three rows, while the radii of the rolling bodies of the outermost rows are larger than the radii of the rolling bodies of the inner rows. 2. Rolling according to claim 1, characterized in that each row of rolling bodies is installed with the possibility of individual adjustment of its diametric size. 3. Raskatka on PP. 1 and 2, characterized in that the inner rows of the rolling bodies are installed with the possibility of their adjustment parallel to the axis of rolling. 4. Raskatka on PP. 1-3, which is due to the fact that the rolling bodies are made in the form of balls. FIG. 2