SU1377569A1 - Device for checking disposition of axes of part holes - Google Patents

Abstract

This invention relates to a measurement technique. The aim of the invention is to provide control of the center distance between blind holes. In the controlled part 3 install the centering mandrel 1 and 2, on which set the measuring node 12 prisms 7 and 8 in such a way that the emphasis. 13 comes into contact with the end face of the test piece 3, and deviations of the axial distance are shown along the reference node 6, and along the reference node 12 the axes are not parallel. The lever 10 is pivotally connected to the prisms 7 and 8 and the reference node 6. The reference node 6 is set at a predetermined distance calculated by the formula, in the case when the axial distance is determined at a given cross section located at a certain distance from the prism 5. 2 Il. 1SO with SD

Description

fia. one

The invention relates to a measurement technique, namely, devices for controlling center distance, non-parallelism and skew between the axes of the holes in the body parts.

The purpose of the invention is to control the center distance between the blind holes.

FIG. 1 shows the device, a general view; in fig. 2 - its kinematic scheme.

The device for controlling the location of the axes of the holes of the parts contains two centering mandrels 1 and 2, the controlled part 3, the yoke 4 made as guides, the clamping prism 5 and the reading unit 6. The prisms 7 and 8 are installed with the possibility of moving along the yoke 4 by spring suspensions 9.

The hub 10 is pivotally connected to the prisms 7 and 8 and interacts with the reading unit 6, the second reading unit 1.2 is mounted on the bracket 11, which fixes the relative movement of the prisms 7 and 8. The stop 13 serves to install the device B

required position. . I

The device works as follows.

With the help of the ring gauges, the prisms and readout nodes are adjusted to zero position.

In the controlled part 3 set the centering mandrel.) And protruding cervix which bypass the axis of the test surfaces. The measuring unit 1 2 of prisms 7 and 8 is mounted on the cantilever necks of the centering mandrels 1 and 2 so that the stop 13 comes into contact with the end of the tested part and reads the deviation of the axial distance from the measuring node 6, and axis non-parallelism.

If it is necessary to measure the axial distance not along the axis of the part 3, but in a given section, located at some distance from the prism 5, the node 6 is displaced along the lever 10 and installed in the place corresponding to the selected distance. For ease of use, the guide for mounting the measuring assembly 6

has a scale graded in millimeters.

The reference node is located on one side of the hinges, and the following ratio of arms is maintained

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eleven,

A + B,

de 1 - distance from the second reference node to the point of contact of the lever with the second clamping element; L is the distance between the middle of the section between the centering elements to the second base element |

A is the distance between the hinges of the lever;

B is the distance between the base elements.

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5 Fo, rmula invention.

A device for controlling the location of the axes of the holes of parts, containing two mandrels, one of which is base with centering elements and coaxial control cylinders; one of the clamping elements with the possibility of interaction with the other, and the other reading unit is mounted on the housing, characterized in that, in order to ensure control of the axial distance between the blind holes, It is equipped with a lever pivotally connected at one end with one of the clamping elements and in contact with the middle part of the second clamping element. the cylinder of the base mandrel and contact with the other end of the lever, and the distance from the second reference node to the point of contact of the lever with the second based el ment equal to the distance from the middle portion

513775696

between the centering elements of the melchuda tagner range:

of the second based element, smart-to the distance between the base-based pa factor coefficient, equal to the corresponding elements.

Claims (1)

A device for controlling the location of the axes of the holes of the parts, containing two mandrels, one of which is basic with centering elements and coaxial control cylinders, a housing interconnected with a control cylinder of the basic mandrel, two basing elements and two reading units, one of which is mounted on one of the basing elements with the ability to interact with another, and another readout node is installed on the housing, characterized in that, in order to ensure control of the axle distance between blind holes, it is sn It is pivoted with a lever pivotally connected at one end to one of the base elements and the middle part in contact with the second base element, both base elements are mounted with the possibility of independent movement perpendicular to the axis of the control cylinder of the base mandrel, the second reference unit is mounted on the housing with the ability to move along the axis of the control cylinder of the base mandrel and contacting with the other end of the lever, and the distance from the second reference node to the point of contact of the lever with the second basing element avno distance from the middle portion between the centering element to the second element is based, multiplied by a factor equal to the distance between the wear ot377569 shauniramn lever to the distance between the elements is based.