SU1173153A1 - Limit gauge for checking hole grooves - Google Patents

Abstract

ULTIMATE CALIBRATION FOR CONTROL OF CANALS IN HOLES, containing: a housing with openings, SI which are perpendicular to the axis of the housing, mounted in the housing with the rod with a measuring tip that can be moved along its axis; the axes and interacting with the tip, and the handle, spring-loaded relative to the body, which is limited by the fact that, in order to expand technological capabilities, it is equipped with a permanent magnet placed in the handle e, and the holes in the housing are made with a diameter equal to the diameter or large diameter of the balls.

Description

41

00

SP

with

The invention relates to a measurement technique, in particular, to devices for monitoring the diameters of the grooves in the holes of the products.

The purpose of the invention is the expansion of technological capabilities by means of the "Control D1S1: meters of grooves in the CI9X hole. .

FIG. 1 shows a limiting caliber, a general view, FIG. 2 - caliber when checking a defective part; in fig. 3 - the same, when controlling the nominal size of the groove.

The caliber includes a housing 1 with a mounting base 2, and holes 3 located at an angle of 120. The axes of the holes 3 are perpendicular to the axis of the housing 1. In the housing 1, the rod 4 is mounted with a measuring step tip 5, whose steps are made with dimensions d , d .; d ;; dB holes 3 of the housing 1 are placed with the ability to move along their axis balls 6 interacting with the measuring tip 5. The holes 3 in the housing 1 are made with a diameter equal to or greater than the diameter of the balls 6, which allows the balls 6 to partially or completely exit holes 3 in a controlled groove. The caliber also contains the handle 7, spring-loaded with respect to the housing 1 by the spring 8. In the handle 7 there is a permanent magnet 9 which, while controlling the shgrika 6, prevents it from falling out of the holes 3.

On case 1 there are two risks, corresponding to the passage size and the non-through passage, NOT the dimensions, the control risk is applied on the stem 4.

The maximum caliber works in the following way.

A body of 1 gauge is inserted into the hole of the tested part, the balls 6 fall into the measured groove, and the center of the ball 6 is located at the same distance from the mounting base 2 as the center of the measured groove from the surface of the part.

By pressing the handle 7, the measuring tip 5 is moved, the balls 6 slide along the lead-in cone (diameter d), they enter from the housing 1 and roll out into the measured groove. In this position, the diameter d of the tip 5 + the diameter dy of the ball 6 corresponds to the nominal size of the groove, and the position when the diameter d2 of the tip 5 + diameter d 5 of the ball 6 corresponds to the increased size of the groove at which parts are discarded.

When the gauge is reset (the case 1 is still in the part), the spring. 8 returns the measuring tip 5 to its original position, the balls 6 under the action of the permanent magnet 9 also return to the housing 1 and are prevented from falling out on the diameter d.

In this position, the gauge is removed from the orifice of the item being measured.

Claims (1)

A LIMIT CALIBER FOR CONTROL OF grooves in openings, comprising: a housing with holes about which are perpendicular to the axis of the housing. A rod with a measuring step tip installed in the housing with the possibility of moving along its axis, balls placed in the holes of the housing with the possibility of moving along them axis and interacting with the tip, and the handle, backing. recessed with respect to the housing, which requires that, in order to expand technological capabilities, it is equipped with a permanent magnet located in the handle, and the holes in the housing are made with a diameter equal to or larger than the diameter of the balls. s (V ω SP io