SU478174A1 - Device for measuring flatness - Google Patents

Description

(54) DEVICE FOR MEASURING NON-FLATNESS

one

The invention relates to a technique for linear measurements, namely, devices for measuring flatness.

Devices for measuring flatness are known, comprising a guide.

a mechanism made in the form of a double articulated carousel, and a comparator with two ct based sensing elements, for example, pneumatic nozzles, interacting with a model and test surface.

The purpose of the invention is to provide inspection of parts with discontinuous surfaces. : This is achieved by the fact that the guide mechanism is equipped with a cam that provides the movement of sensitive elements. comrader on a given path.

The drawing shows a device for measuring flatness.

The device contains a base 1,

a guiding mechanism, made in the form of a double hinged carousel with links 2 and 3, and a comparator with two coaxially arranged sensitive elements 4 and 5, made in the form of pneumatic

the nozzles included in the differential measurement circuit 6, the device also contains a rack 7 for fastening the standard and the test piece. To adjust the gap between the tested surfaces and the sensitive elements 4 and 5, the latter are placed on spring parallelograms 8 and 9 and are equipped with adjusting screws 1O and 11. To move the sensitive elements relative to the controlled surfaces, a handle 12 is fixed on the link 3 of the guide mechanism. The comparator moves along a predetermined path using a copier 13 mounted on a stand 7, and a copier 14 mounted on link 3 of the guide mechanism so that its cent lies on the forward, passing Through the centers of sensitive elements 4 and 5.

The device works as follows: The exemplary plane is set against the sensing element 5, and the test piece against the element 4. With the help of adjusting screws 1О and 11, set between the ends

These elements (nozzles) and controllable surfaces have the necessary clearance. A copier 13, corresponding to the contour of the part being monitored, is mounted on the rack 7. Then, by the handle 12, bypassing the comparator around the contour of the copier 13, pressing the latest finger 14 to the last. The differential measurement circuit of 6 measurements of TIT is the difference between the reference and turn planes.

PRIOR FROM ABOUT

A device for measuring flatness, containing a guiding mechanism.

four,

made in the form of a double articulated carousel, and a comparator with two coaxially races laid by "chvstvstitelnymi elements

For example, pneumatic nozzles that interact with the model and turnable surfaces, such as those that are used in order to control parts with broken surfaces, the guide mechanism is equipped with a copier that moves the sensitive elements of the comparator along a predetermined path.