SU1728646A1 - Device for checking of geometrical parameters of articles - Google Patents

Abstract

The invention relates to a size control technique and can be applied in mechanical engineering enterprises. The purpose of the invention is to increase the reliability of controlling the size of the product by simplifying the device. The light flux from the source illuminates the edges of the product under test and enters the input ends of regular ribbon light guides, which are installed with the possibility of moving along the gauge. Information on the size of the product is read visually from the focon, on the larger end of which a metric two-bottom scale is applied, and the small end of the focon is optically coupled to the output ends of the ribbon light guides arranged one parallel to the other, 3 Il.

Description

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The invention relates to a size control technique and can be applied in mechanical engineering enterprises.

A device for monitoring the geometrical parameters of a product is known, comprising two sliding optical rulers and an image alignment system on these rulers, consisting of electromechanical and electronic conversion units, comparing and analyzing the obtained dimensional information, as well as a digital display unit.

The disadvantages of this device are its complexity and the ability to determine only the size of the products or one type of deviation.

The closest technical solution to the present invention is a device for controlling linear dimensions and shapes.

The disadvantages of the known device are its complexity and the reliability of the control is not high.

The purpose of the invention is to increase the reliability of controlling the dimensions of the products.

The goal is achieved by the fact that in the device for controlling the geometrical parameters of products containing a light source, a fiber-optic converter, made in the form of regular two ribbon light guides, and a recording unit, contain a gauge set perpendicular to the optical axis of the device, the input ends the light guides are mounted with the ability to move along the measuring line, the output ends are arranged one parallel to the other, and the recording unit is designed as a focal-box with two-channel digital th display on the larger end and is mounted so. what's his

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the small end face is optically coupled to the output ends.

Figure 1 shows the block diagram of the device; figure 2 - measuring line with two input ends of the optical fibers; on fig.Z - recording unit.

A device for monitoring the geometrical parameters of products contains a source of 1. light, measuring scale 2, installed perpendicular to the optical axis of the device, with movable input ends 3 and A of a fiber-optic converter, made in the form of regular tape light guides 5 and 6, and lenses 7 and 8 at ends 3 and 4 , the output ends 9.10 of both light guides 5 and 6 are located one parallel to the other, and the recording unit 11 is in the form of a focon with a two-row digital indication on a large end face, the focon is set so that its small end face is optically conjugated with the output ends of the 9 and 10 light guides 5 and 6.

The input ends 3 and 4 consist of 1,2, ..., p rectangularly shaped ends of optics 12 arranged in one row in the sequence, forming optical fibers 3 and 4. The output ends 9 of the optical fiber are parallel to the output ends of the optical fibers. 10 of the light guide 6, the registering unit 11 is optically attached to both ends 9 and 10 in the form of a focon, the output large end of which has a metric two-row scale. 1,2,3,4,5,6,7, ...

for example, these numbers 1, 2, 3, 4, 5, 6, 7, ... ry correspond to the corresponding selected linear discharge, for example, a millimeter or its fraction depending on the selected thickness of the optical fibers.

Device for controlling the geometrical parameters of the product works as follows.

Before starting the measurement, the ends 3 and 4 are spacing on both sides of the metric axis

line 2 on the size specified by the drawing, or on the edges of the controlled product in accordance with the divisions on the rod. Luminous flux from a light source that carries

dimensional information arrives at the input ends 3 and 4, focused by lenses 7.8, passed through the optical fibers, information is taken from the output ends 9 and Yufokon 11, from the output end of which

it is read. At the same time, at the end of the focon, both edges of the product flash against each other, indicating the difference between them (if any). To determine the type of defect, such as ovality, the device is turned around its center in one direction or another.

The usefulness of the device in its constructive simplicity, versatility - all types of deformation of the form are determined.

Claims (1)

products with a digital indication of how much it is deformed. The coarse reading is dividing by bar. The device can be used without a light source, for example, to determine the parameters of hot forgings under a press (hammer). Apparatus of the Invention A device for monitoring geometrical parameters of products, comprising a light source, a fiber optic a converter made in the form of two regular ribbon fibers, and a recording unit, characterized in that, in order to increase the reliability of control, it is equipped with a ruler, installed perpendicular to the optical axis of the device, the input ends of the waveguides are movable along the gauge, the output the ends are mutually parallel, and the recording unit is designed as a focon with two-digit digital indication on the large end face and is installed so that its small end face is optically coupled to the output dnymi fiber end. 1