SU1449834A1 - Device for checking diameters of holes - Google Patents

Abstract

This invention relates to a measurement technique. The purpose of the invention is the expansion of technological capabilities. The device includes a housing 1 with six holes 2 located three on each side of the housing 1 in three parallel planes perpendicular to its axis, two nodes 3 and 4 5 (L with CX) with 4

Description

FIG.

centering, made in the form of 2 adjustable rods 5 with key grooves installed in the holes, is about the counting unit 12. Before the measurement, the sample unit 12, the measuring rod 11 of which is located between the centers 3 and 4 of the centering in the plane passing through the axes of the spring-loaded forks, is set to zero. Then the device is installed in a controlled hole, adjust the centering units 3 and A to the size of the hole by moving the rods 5 and fix the preset position using crackers installed in the grooves and screws installed in the ends of the body 1, the axes of which are parallel to the axis of the body 1. The device is moved along the axis The hole to be tested and, based on the readings of the counting 12, determine the deviations of the hole diameter in the axial direction. When measuring the deviation in a given cross section, the device is moved in a plane perpendicular to the axis of the hole being tested. In this case, the supporting elements, made in the form of rollers mounted in forks attached to the ends of the rods 5, can be rotated around their own axis, perpendicular to the axis of the housing, rotated by 90. Because the forks are located in the same plane, and the axis of the one fork is spring-loaded; when the device is moved in the plane perpendicular to the axis of the hole being tested, a backlash is sampled to ensure the required measurement accuracy. 4 il.

one ;

This invention relates to a measurement technique.

The purpose of the invention is the expansion

Technological capabilities by expanding the range of controlled holes.

Figure 1 shows the device, a general view; figure 2 - the same view

from the side; on fig.Z - section aa in figure 1; figure 4 - locking device.

A device for monitoring the diameters of the holes comprises a housing 1 with six holes 2 located three on each side of the housing 1 in three parallel planes perpendicular to its axis. In the holes of the case

.1 two assemblies 3 and 4 centering are installed, made in the form of 2 adjustable rods 5 installed in the hole with keyways 6, in which rusks 7 are installed, designed to fix the rods in a predetermined position with screws 8. Support elements are installed at the ends of the rods, made in the form of rollers 9 fixed in forks 10 that can rotate around its own axis, perpendicular to the axis of housing I. The forks 10 are located in the same plane, and the axis of one is forking 0 in each node 3 and center 4 is spring loaded. The measuring rod 11 of the reference node 12 is located between the nodes 3 and 4, centered in the plane passing through the axes of the spring-loaded forks 10.

The device works as follows.

Before the measurement, the readout node, 12 is adjusted to a predetermined size, and the device is installed in a test opening 13. Then, the nodes 3 and 4 are centered on this size.

When measuring the deviations of the diameter in the axial direction, the device is moved along the axis of the controlled

The holes 13 and the reading unit 12 determine the size of the diameter of the hole 13. When measuring deviations in various sections, the device is moved in a plane perpendicular to the axis of the hole 13, while the rollers 9 are rotated 90 and the device is free to move. The maximum reading of the reference node 12 determines the actual

hole size 13 in a given section ..

U49834

Claims (1)

The Formula of Testing A device for controlling the diameters of the holes, comprising a housing, two centers of centering installed therein, stop and supporting elements mounted on the centers of centering, and a reading site with a measuring rod located on the housing, characterized in that, p. , 10 in order to expand technological capabilities by expanding the range of controlled holes, it is equipped with screws installed at the ends of the hull, the axes of which are parallel to the axes of the hull, crackers and forks, the hull is made with six holes spread out on each side shells in three parallel planes perpendicular to axis 20 to the pagans from one to another bodies, centering units are made in the form of adjustable rods installed in the body holes with key grooves, crackers are located in the grooves of the rods, designed to fix the rods in a predetermined position with screws, the supporting elements are made in the form of rollers mounted in forks, which are fixed at the ends of the rods, the possibility of rotation around its own axis, perpendicular to the axis of the body, and located in the same plane, the axis of one fork in each node of the centering is spring-loaded, and the measuring rod reads The node is located between the centering nodes in a plane passing through the spring-loaded axes of the forks. / J .2 ten 9uz.