SU1522021A1 - Method of measuring deviation from perpendicularity of surface of articles - Google Patents

Abstract

This invention relates to a measurement technique. The purpose of the invention is to improve the accuracy and simplify the measurements. When measuring the deviation from the right angle of the working planes 4 and 7 of the square 1 relative to the base surface 2 of the plate 3, the square 1 is placed on the base surface 2 and pressed to the stop 5 by the working plane 4. Then the measuring unit 6 located at a given distance is brought to it from surface 2, and take his readings. After that, the square 1 is turned 180 ° and pressed by the working plane 7 to the stop 5, the reading unit 6 is brought in and the readings are taken again. Then, the distances between the working planes 4 and 7 are measured along the lines of the stop 5 and the measurement. The deviation from the right angle of the outer working plane 4 relative to the base surface 2 is defined as the half-difference of the readings of the reference node 6 with the half-difference added between the planes 4 and 7, and the deviation of the internal working plane 4 with subtraction of this half-difference. 3 il.

Description

The invention relates to measurement technology.

The purpose of the invention is to improve accuracy.

Fig, 1 shows the scheme of implementation of the method for the planes of the calibration angle; FIG. 2 is the same for the plane-paraffel coal Kaj in FIG. 3 - the same for the prism.

The method for measuring the deviation from the perpendicularity of the working planes of a square is carried out as follows.

The checked angle 1 was installed ™ on the base surface 2 of the plate 3 and. press the outer working plane 4 to the stop 5 fixed on the plate 3 and the reference node 6 and take its readings n (see fig. 1a). The distances K and P between the working planes 4 and 7 are rotated. 1 by 180 ° and the inner working surface is pressed against the anvil 5, the reading unit 6 is brought in and its readings P2 are taken. The deviation from the right angle of the working plane 4 relative to the base surface 2 is calculated by the formula

 П1- (пг- А) a - -.

I

and the deviation from the right angle of the working plane 7 from the base surface 2 is according to the formula:

2-IliSli 4l

.

a and a

- deviation from the right angle of the outer and inner working surfaces of the square, respectively

e

phage.g

n and n

rk

readings of the reference site at its contact, respectively with the outer and inner working PLANES}

the difference between the distance measurements between the outer and inner work planes, respectively.

five

0

0

five

0

Claims (1)

Invention Formula The method of measuring the deviation from the perpendicularity of the planes of the product, for example, a gon, which consists in placing a square on the base surface of the plate, presses the outer working plane in the lower part against the stop and at the top to the reference node, and according to its indications on the deviation of 6t perpendicularity of the working planes of the square, 6 tons, in order to increase the accuracy and simplify the measurements, measure the distance between the outer and inner working surfaces of the square on the stop and determining the difference between them, a square rotated by 180 ° around a vertical axis. The inner working plane is pressed against the stop, the readings of the counting unit are taken, and the deviation of the right angle of the outer working plane is defined as the half-difference of the readings from the reading site with the half-distance added to the working planes, and the inside by subtraction of this half-difference. fig.Z