SU1469336A1 - Apparatus for checking end play with respect to axis of outer thread of parts - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to mechanical engineering, namely to means for controlling threaded parts. The purpose of the invention is to expand the range of controlled parts by enabling the control of parts with external and internal threads and improving the accuracy by ensuring that the controlled parts can be reliably located. This is achieved by inserting two removable mandrels into the device: one for positioning the parts with; external thread, the other with internal thread, and the base of the thread of the mandrel is made in the form of spring-loaded split sleeves. When measuring, spring-loaded split sleeves reliably base the monitored part on the average thread diameter. 2 ill., 2 3.p. f-ly. with $ (/)

Description

one

The invention relates to mechanical engineering, namely, to means of controlling threaded parts.

The purpose of the invention is to expand the range of controlled parts by enabling the inspection of parts with external and internal threads and improving accuracy by ensuring that the controlled parts can be reliably located.

Figure 1 shows the proposed device for controlling the radial and face beats relative to the external thread of the part; figure 2 - the same, relative to the internal thread of the part.

The device comprises a base 1, a body 2 fixed on it, including a sleeve pressed into it

3 with a tapered bore into which a detachable mandrel 4 or 5 is threadedly mounted at the end for locating part 6 or 7 and secured by means of 8; A spring 9 is mounted on the stud 8 and fixed by means of a nut 10. 1 1 and lock nuts 12 in such a way as to ensure a tight fit of the mandrel 4 or 5 to the sleeve 3 with the possibility of its rotation of the arm,

The mandrel 4 is designed to install a screw-type part 6 having an external thread, its end in contact with the part to be tested is made in the form of a split spring sleeve with grooves 13 and has an internal basic thread 14 and an external thread 15 on which clip O5 is installed

from 00 00

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The nut 16, The external rebar surface 15 is made with a small cone to ensure reliable clamping with the help of the nut of 16 controlled parts having threads with large tolerances on the average diameter.

The mandrel 5 is intended for mounting a nut-type part 7 having an internal thread. Its end, contacts with a controlled part 7, is also made in the form of a split spring sleeve with grooves 13 and with an external base thread 17. Part 7 is clamped by unclamping the end of the mandrel 5 with the help of a ball 18 installed in the inner axial bore of the mandrel with an emphasis in its split part. On the other side, the pusher 19 contacts the ball 18 and enters the recess of the bar 20 with its other end, the axial movement of which is controlled by a nut 21 mounted on the threaded surface 22 in the middle part of the mandrel 5. Two screws 24 are attached to the base 2 by means of screws 23 , to which the screws 25 are attached to the rod 26 with the recording devices 5 placed on them, for example, indicators 27 and 28 of the hour type, clamped by screws 29,

The device works in the following way.

The monitored part 6 is screwed into the mandrel 4 by an external thread, and then clamped with a nut 16, the legs of the indicators 27 and 28 are guided to the controlled surfaces of the part and manually rotate the mandrel 4. The values of the radial and face beats are determined by the indications peI and x average thread diameter details 6.

Claims (2)

We control the part 7 with the internal thread screwed onto the mandrel 5, then using the nut 21 through the bar 20, the pusher 19 and the ball 18 unclenched the split part of the mandrel, thus ensuring a reliable base of the controlled part. The control operation is performed in the same way as in the previous case. Claim I "Beating Control Device end face with respect to the external thread axis five 0 five the parts comprising a base mounted on it with the possibility of rotation around its axis parallel to the base, a mandrel with a thread at the free end and a bracket with a linear displacement transducer fixed on it, characterized in that, in order to expand the functionality by providing simultaneous control of the radial beating relative to the thread axis of the part and expanding the range of controlled parts, it is equipped with a second bracket with a linear transducer mounted on the base displacements, the second mandrel, the two mandrels are adapted to detachably and threaded ends of the latter are in the form of split sleeves shlh springs, 2. The device according to claim 1, that is, in order to increase the accuracy of control of parts with external threads, the first mandrel is made with external tapered threads from the side of the free end, intended for placement of the object under control, and the device is equipped with a nut with an internal tapered thread, which mates with an external tapered thread of the first mandrel, 3, The device according to claim 1, that is, so that, in order to improve accuracy when checking parts with internal thread by providing a reliable base of the controlled part, the second mandrel is made with an external cylindrical thread in its middle part, with a radial through prismatic groove on the latter, with a central longitudinal three-step through hole, and the device is equipped with a ball located at the beginning of the second and the end of the first the steps of the longitudinal hole, a prismatic bar located in the prismatic groove, a nut screwed on the thread in the middle part of the mandrel and connected 0 0 five 0 with a prismatic bar, and a cylindrical pusher located between the ball and the prismatic bar in the second stage of the longitudinal hole, Hi 23 figure 1