SU794369A1 - Method of determining article surface routhness after working - Google Patents

Description

surface to be displaced, move the light fluxes in one direction in the specified plane of the relative to the controlled surface, record the moments of measurement of the intensities of the reflected light fluxes and by the distance that each light flux moves between and the angles of the reflected fluxes and angles of inclination. On the light fluxes to the controlled surface, the surface finish is determined.

FIG. 1 shows a structure diagram of a device (embodiment) implementing the proposed method; in fig. 2 is a diagram explaining the method.

The device contains a node 1 of the sources of light fluxes, an electromechanical node 2 of the drive, a lock 3 photodetectors, a block 4 of reading, processing signals of photo detectors and an indication of the results of determining the purity of surface treatment and the surface being monitored 5.

FIG. 2 there are the following designations: U {, t / 2 - the positions of the sources of light fluxes at the first change of the intensity of the reflected fluxes; IJ, U - new position of sources at the second change in the intensity of each of the reflected flows; LI, LZ are the distances traveled by each source from the first change 0 of the intensity of the reflected flux of the given source to the second change L, 4 of the intensity of each source is, respectively; a, Y - the angles of the - light fluxes D, E to the controlled surface S; segment BK.h - height of the element ABC (irregularities of the test surface);

- the vector Y indicates the direction of movement of the sources in the PLATE P1 of their location (in Fig. 2, the plane P is parallel to the test surface).

The value of h (Fig. 2) is calculated from the expression

.

/ 1 ga -tgf

The method is carried out as follows.

The light fluxes from the node / sources of light fluxes are focused at a single point of the surface 5 under control (Fig. 1).

The assembly / drive is driven by the drive assembly 2. Reflected from the test surface 5-light flux register in block 3 photodetectors, the signal

from which it enters unit 4, where data about the speed of movement from unit 2 of the drive and from unit 1 about the magnitude of the inclination of the light fluxes to the monitored surface 5 also arrive. In unit 4, the signals from the photodetectors are amplified, the moments of these signals change and you -Calculation of the distance that sources travel between changes in the intensity of the reflected fluxes; then, using the difference of these distances LI and LZ at known angles of inclination a and the fluxes, the parameters of the surface finish are calculated.

The proposed method improves the accuracy of determining the cleanliness of surfaces by eliminating the measurement of the absolute values of the intensive spines and expands the range of products, the purity of processing of which can be determined by excluding the operation of rotating the products whose surface is monitored.

Formula 3 O B R et e II

The method of determining the purity of the surface treatment of products, which means that the luminous flux is directed onto the controlled surface and the luminous flux reflected from this surface, characterized in that, in order to improve the accuracy of determining and expanding the nomenclature of the monitored products, a fixed plane and at a fixed distance from the main luminous flux. direct the additional luminous flux to the controlled surface, focus these luminous fluxes into one to the surfaces, move the light fluxes in one direction in the specified surface to the controlled surface, record the moments of change in the intensities of the reflected light beams and by the difference of distances that each light beam moves between m-oments of the change in intensity of the reflected fluxes, and The tilt angles of the light fluxes to the controlled surface area are used to determine the surface finish.

Sources of information taken into account n, ekopert-ize:

1. USSR author's certificate No. 250465, cl. G 01 B 1-1 / 30, 1968.

2. USSR author's certificate number 508670, cl. OSHV 11/30, 1972 (prototype).

Claims (1)

Claim The method for determining the purity of the surface treatment of products, which consists in the fact that the light flux is directed to a controlled surface and the light flux reflected from this surface is recorded, characterized in that, in order to improve the accuracy of determining and expanding the range of controlled products, in a fixed plane and on a fixed distance from the main light flux. direct additional light flux to the controlled surface, focus these light fluxes to one point of the controlled light surface, move the light fluxes. in one direction in the indicated plane relative to the surface to be monitored, record the moments of change in the intensities of the reflected light fluxes and. according to the difference in the distances at which each light flux moves between the moments of change in the intensity of the reflected fluxes and the angles of inclination of the light flux to the controlled surface determine the purity of the surface treatment.