SU1392358A1 - Device for checking parallelism of axes of rotating parts - Google Patents

Description

(21) 4114704 / 25-28

(22) 12.06.86

(46) 04/30/88. Bü Number 16

(72) V.A. Kuznetsov and V.V. Petyukovich

(53) 531.717.88 (088.8)

(56) US Patent N 4298281, cl. G 01 B 11/27, 1981.

(54) DEVICE FOR THE CONTROL OF THE PARALLELITY OF AXES IN THE AGE OF A DETAIL

(57) The invention relates to the measurement technique and allows controlling the parallelism of the axes of rotation of the parts in the recording equipment. The aim of the invention is to improve the control performance by simultaneously obtaining information on the angular deviation of the axis of each of the parts being monitored.

A screen 3 is installed at the end of each monitored part 4, in the center of which there is a source of light 1 connected to it, and above all sources 1 there is a mirror 3 that optically connects the change of each of the N sources with the corresponding screen. Monitored parts 4 are brought into rotation and include sources of light 1, the beam trace from each source 1 after its reflection from mirror 3 is observed on screen 2. The immobility of the trace of the reflected beam on the screen during rotation of the part characterizes the perpendicularity of its axis of rotation to the base plane ( mirror density 3). 1 il ...

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The invention relates to a measurement technique and can be used to control and adjust the mutual angular orientation of the axes of rotating parts, for example, in recording equipment.

The purpose of the invention is to increase the productivity of control by simultaneously obtaining information on the angular deviation of the axis of each of the parts being monitored.

FIG. 1 shows a diagram of the proposed device; in fig. 2-6 are diagrams of various cases of mutual orientation of the device elements.

The device (Fig. 1) contains N sources of light 1, N screens 2 attached to the ends of monitored parts, a mirror 3 that optically connects each of the sources with a corresponding screen. Each of the sources is bonded with a corresponding screen. The drawing also shows the controlled rotating parts 4,. The position 5 indicates the axes of the controlled parts, the position 6 indicates the direction of the beam (beam) of the light source, and the position 7 indicates the direction of the reflected beam (beam) of light from the mirror 3.

FIG. Figure 2 shows the case when the axis 5 of rotation of the part 4 is perpendicular to the plane of the mirror 3, and the incident beam (beam) 6 is parallel to axis 5 or coincides with it. As part 4 rotates, reflected beam (beam) 7 returns to source 1.

FIG. 3 and 4 illustrate cases of deviation of the incident beam 6 from the axis of rotation 5, perpendicular to the plane 3, due to the possible skewing of the installation of the light source 1 (Fig. 3) or the screen 2 (Fig. 4) relative to the axis 5 at different positions of the source 1 on screen 2.

In all these four cases presented, as part 4 rotates, sources 1, incident 6 and reflected 7 beams (rays) and screen 2 rotate synchronously with it. The trace of the reflected beam (beam) 7 on the screen 2 is fixed the trajectory of motion of which in space is a circle with the center on the axis of rotation 5, lying perpendicular in the plane of the plane (when the target is distorted, this plane does not coincide with the plane of the target).

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FIG. Figure 5 shows the case where the incident beam (beam) 6 and the axis of rotation 5 coincide and are not perpendicular to the plane of mirror 3. When rotating, the incident and reflected beams (rays) 6 and 7 remain stationary in space.

FIG. 6 shows the case when the incident beam (beam) 6 does not coincide with the axis 5 and they are both non-perpendicular to the plane of the mirror 3.

The device works as follows.

Previously on the end of each of the monitored parts 4 install the screen 2, in the center of which is located the source of light 1, and above all sources 1 have a mirror 3.

Monitored parts 4 are rotated and include sources of light 1, light beams from the sources are directed to mirror 3, after each light beam is reflected from the mirror on screen 2 connected to the corresponding source, the position of the beam trace is observed. t on the deviation of the axis of the test piece from the base direction.

In the device, only if the axis 5 is perpendicular to the plane of the mirror 3, the trace of the reflected beam 7 remains stationary on the screen 2 during the rotation of the part 4, regardless of the location of the source 1 on the screen, and on the angular orientations of the incident beam 6 and; screen 2 about axis 5, i.e. In the device, the immobility of the trace of the reflected beam on the screen during rotation is a criterion for determining the perpendicularity of the axis of rotation of the part relative to the reflecting plane and the accuracy of the observations is not affected by possible angular distortions when installing the light source and the screen.

The device allows to determine the numerical value of the error, the angular orientation of the axes 5 of the rotation of the monitored parts 4, relative to the mirror 3, and therefore among themselves from the following relationship:

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where 1 is the distance on the screen from the source to the geometric center of the trace of the reflected beam 7;

L is the distance from source 1

.. light to mirror 3 normal k mirror.

Claims (1)

Invention Formula A device for controlling the parallelism of the axes N of rotating parts, comprising a mirror, a screen and a light source located in the center of the screen, characterized in that. u //////////////// that, in order to improve the control performance, it is equipped with N-1 light sources and N-1 screens, each of the light sources is connected to one of the screens, each of the screens is intended to be attached to the end of one of the monitored parts, an annular scale is applied to the screens, and the mirror optically links each of the sources with a corresponding screen. // l /////// U / IIHHf (ZW.J Fig.b JlLLLLLL / JJJl /// J // W / J A L FIG. 6