RU1796485C - Method of assembling hydraulic press - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used2 during the installation and adjustment of column hydraulic presses. The method consists in measuring the errors of the installation of columns on the light beam of a simulator autocall. The mounting accuracy is improved due to the fact that the light beam is transmitted sequentially from the autocollimator light source to the first translucent mirror, from it through four rectangular prisms to the second translucent mirror / onto the autocollimator grid, and the column mounting error is determined from the blurred line pattern on the grid . 7 ill.

Description

Joint venture

WITH

The invention relates to the processing of metals by pressure and can be used in the installation and adjustment of column presses.

The purpose of the invention is to increase the accuracy of installation of the columns of the press and the resource of its work by ensuring equal working lengths of the columns and the strict perpendicularity of their axes to the traverses.

Figure 1 shows the course of the light beam in the case of precise installation; figure 2 is the same side view; figure 3-7 - the strokes of light rays with errors x installation.

The installation of the press is carried out in the following order.

In the lower traverse 1, vertical columns 2 are fixed with the internal nuts 3 pre-mounted on them. To the vertical columns 2 in their upper

parts fasten the upper nuts 4, on which the upper crosshead 5 is mounted. On one of the columns 2 of the press, an autocollimator 6 is installed, comprising an output 7 and input 8 lenses, a light source 9, an eyepiece 10, two translucent mirrors 11 located at an angle of 45 ° four rectangular prisms 13 are attached to the axis and the grid 12, On the upper 5 and lower 1 traverses at the places of the base points A, B, C and E, they sequentially pass the light beam 14 from the light source 9 of the autocollimator 6 to the translucent mirror 11, output lens 7, from it through four straight Aulnay prism 13 and the input lens 8 on the second half mirror 11, where the light beam is split into two beams, one of which on the mesh pad 12, and the other n sequentially rohodit path. parallelism about

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The first move of the light beam. Through the eyepiece 10, a mark is observed on the grid 12, which in the case of inaccurate installation (see Figs. 3-7) will be blurred with a ruler. Further, in order to eliminate the error in mounting the pair of columns 2, rotate the upper nuts 4, achieving the most clear mark on the grid 12. When in this way the exact installation of one pair of columns 2 was achieved, consisting in the equality of their working lengths () and the perpendicularity of their axes to Surfaces 1 and 5 (ABiAC, ABiBE, CED.AC, CE1BE provided), a similar process is carried out with the remaining columns.

The invention provides a difference in the working lengths of the columns of not more than 0.2 mm, which contributes to an even distribution of the load between the columns. The absence of skew of the traverses relative to the axes of the columns reduces to zero the bending moments acting on the columns, plungers, cylinders and other parts of the press.

Thus, the objective achieved by the invention is to increase the accuracy of the installation of the columns ultimately lengthens the life of the press.

Claims (1)

The claims A method for mounting a hydraulic press, comprising mounting the upper fixed beam on vertical columns fixed to the lower beam with internal nuts pre-installed on them, control the accuracy of the columns and the mating surfaces of the internal nuts and the upper fixed beam, and adjust the position of the mating surfaces of the internal nuts, and that in order to increase the accuracy of the installation of the columns of the press and the resource of its work by ensuring equal working lengths of columns and strict perpendicularity of their axes to traverses, accuracy is controlled by measuring the parallelism of internal the surfaces of the upper and lower stationary traverses in the area between the two columns and the axes of these two columns perpendicular to it by the autocollimation method, in which the autocollimator with output and input lenses located along one axis, a light source and an eyepiece located perpendicular to the axis of the autocollimator, and with two translucent mirrors located between the lenses at an angle of 45 ° to the axis of the autocollimator, mounted on one of the columns of the press, directed its axis parallel to the column, on the top and At the bottom of the traverse, rectangular prisms are attached through a 90 ° rotary beam, placing surfaces pairwise facing each other at the level of intersection of the inner surfaces of the traverse with the axes of the corresponding column, and during the control, the light beam from the light source of the autocollimator is sequentially passed to a translucent mirror, to the output lens, from it through the four mentioned prisms and the input lens - on a second translucent mirror, where the light beam is divided into two beams, one of which falls on the autocollimator grid, and the other sequentially passes a path parallel to the first course of the light beam, the installation error is determined by the degree of blur of the mark on the grid, and the adjustment of the position of the mating surfaces of the upper nuts is carried out in the control process by rotating the upper nuts until the mark is as clear as possible on the net, and after the nuts of one pair of columns have been accurately installed, a similar process is carried out with the remaining columns. & W.6 7