SU991137A1 - Device for measuring conical holes - Google Patents

Description

(54) DEVICE FOR MEASURING CONICAL HOLES

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The device relates to technical measurements, namely to the control of the geometrical parameters of the conical holes.

A device for measuring tapered holes is known, which contains a rod with a linear scale, two contact elements, one of which is made in the form of a disk rigidly fixed on the rod at the zero point of the scale, the plane of which is perpendicular to the axis of the rod, and a measuring clamp fixing the movement of the second contact element relative to the rod. The second contact element of the known device is made as - and the first in the form of a disk, the plane of which is perpendicular to the axis of the rod AND,

The disadvantages of the known device are its low versatility, the impossibility of measuring holes of different tapers with the same degree of accuracy, without replacing contact elements, especially for long lines of objects.

The purpose of the inventions is to expand the measuring range of the device.

This goal is achieved by the fact that a device for measuring conic holes, containing a rod with a linear scale, two contact elements, one of which is made in the form of a disk rigidly fixed on the rod at the scale zero point, the plane of which is perpendicular to the axis of the rod, and the reading unit, the locking movement of the second contact element relative to the rod, is provided with a seal located 10 on a rigidly fixed contact. the element and the float mounted on the rod so that it can move along the latter, and the second contact element is designed as a calculated volume of liquid located between the first contact element and the surface of the measured conical hole.

The drawing shows the structural diagram of the device.

The measure for measuring tapered holes contains a rod 1 with a linear scale 2, a contact element 3 rigidly fixed on the rod 1, seals 4 and 5,

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located on the contact element 3. The device is equipped with a float 6 with a reference ncex 7. The float is installed with the possibility of being moved along the rod 1, the PRA interacts with the liquid 8, the calculated volume of which is drunk in the measured conical hole 9.

The device works as follows.

A contact element 3 rigidly fixed to the rod 1 is installed in the measuring hole 9, and the seal 4 (5) isolates the cavity located above the contact element 3 from the cavity located under the contact element 3. In the cavity below the contact element 3, The estimated volume of fluid 8, determined by the geometrical parameters of the measured conical opening 9, and the individual elements of the device are placed.

The float 6 with index 7, interacting with the liquid 8, allows you to determine the upper level of the liquid and to conclude that the opening of the taper is otverty within tolerances.

The proposed device is a universal gauge for long holes in a wide range.

Claims (1)

Invention Formula A device for measuring tapered bores containing a rod with a linear Ipsaloy, two contact elements, one of which is made in the form of a disk rigidly fixed on the rod at the zero mark, the plane of which is perpendicular to the axis of the rod, and the reading unit that fits the movement of the second contact element relative to the rod, characterized in that measured, it is provided with a seal located on a rigidly fixed contact element and a float mounted on a rod that can be moved along the latter, and the second contact element is In the video the calculated liquid volume being located between the the first contact element and the surface of the measured conical hole. Sources of information taken into account in the examination 1. I. Bogoraz I. I. and Kaufman I. M. Production of propellers. L. Shipbuilding, 1978, p. 54 (prototype).