SU846992A1 - Arrangement for testing connecting rod - Google Patents

Description

(54) TOOLS TO CONTROL THE ROD

one

The invention relates to a measurement technique and can be used to control a connecting rod.

The closest technical solution to the invention is a device for controlling a connecting rod, comprising: a base, an expansion clamping mandrel fixed on it, a measuring mandrel parallel to it, a carriage adapted for repositioning along a line perpendicular to the axes of the mandrels to the axes lying in the plane, a readout device mounted on the base and in contact with the carriage, a readout device mounted on the ka-. retainer, the direction of measurement of one of which coincides with the direction of movement of the carriage, and the other perpendicular to it, and the intermediate element mounted on the carriage tll "

The disadvantage of this device is low control accuracy due to the large number of contacts between the reading devices and the measuring mandrel, since the intermediate element is hinged on the carriage.

The purpose of the invention is to observe the measurement points.

This goal is achieved by that the intermediate element is rigidly mounted on the carriage, the measuring mandrel is provided with a spherical hinge located on its axis, and the intermediate element is mounted on the hinge.

The drawing schematically shows the proposed device.

ten

The specified device contains a base 1, an expandable V-base 2 fixed on base 1, a measuring mandrel 3 with a spherical hinge 4, a carriage 5, a reading device b fixed on the base 1, a reading device 7 and 8 fixed on the carriage 5, and an intermediate element 9, rigidly mounted on the carriage 5 at one end, and the other end mounted on a spherical hinge 4..

The device works as follows.

25

Install a controlled rod 10 with a large diameter onto an expandable clamping mandrel 2, a smaller diameter onto a measuring mandrel 3, which is oriented along the hole of the connecting rod 10, if there is an error in the center distance of the connecting rod holes through the spherical hinge 4 and the intermediate element 9 fixed on the carriage 5, informs the forward movement of the carriage 5, with which the reading device b is in contact, registering this error.

The non-parallelism and the crossing of the axes of the holes of the connecting rod register, respectively, the reading devices 7 and 8, mounted on the carriage 5 and in contact with the measuring mandrel 3, and being able to orient themselves on the spherical hinge 4.

All readout devices are pre-set to O on the model connecting rod.

The proposed device allows to increase the measurement accuracy of connecting rods.

Claims (1)

Invention Formula A connecting rod control device containing a base, an expandable clamping mandrel mounted on it, parallel to it measuring a mandrel, a carriage adapted to move along a line, perpendicular axes of the mandrels and lying in the plane of these axes, a reading device mounted on the basis of the scientific research institute and in contact with the carriage, reading devices fixed on the carriage, the measurement direction of one of which coincides with the direction of movement of the carriage, and the other perpendicular to it, and an intermediate element mounted on the carriage, characterized in that, in order to improve the accuracy of the measurement, the intermediate element is fixed rigidly on the carriage ie, measuring mandrel 5 is provided with a spherical hinge located on its axis, and an intermediate element is mounted on this hinge. Information sources, 0 taken into account in the course of examination 1. Typical examples of measurement schemes of dimensional parameters of mechanical engineering parts OMTRM-3382-001-65. N., Research Institute 5 information on mechanical engineering, 1965, ., lAvrf i - ujnnv JL rll c.lol, fig. 125 (prototype). r-lfyl L yaaa tl