SU1260657A1 - Device for automatic check of outside dimensions of workpieces - Google Patents

Abstract

This invention relates to a measurement technique. The aim of the invention is to increase the dimensional control accuracy by introducing microswitch 13 into the design of the device and making one of the arms of the lever 10 with a groove 11, the value of which is chosen equal to the tolerance on the size being monitored. During control, the part is installed in prismatic holes, when the handle is released, the sponge 4 lifts the measured product to the sponge 2, while the product presses on. one shoulder of the two shoulders lever 10. If the controlled dimension is smaller than the minimum size, then the stopper 7 contacts the left side of the groove 11 of the lever 10, preventing it from turning and interacting with the microswitch. If the controlled size is greater than the maximum allowable size, then the stopper 7 contacts the right side of the groove 11 of the lever 10 and also prevents it from turning and closing the microswitch 13. If the controlled size is $ 9 in this range of controlled size, then the stopper is inside the groove 11 of the lever 10, which, by the action of the mass of the part being monitored, rotates at a certain angle and the second S arm closes the microswitch 13, which gives a signal about the availability of the part. 1 il. V j. one

Description

one

The invention relates to an ICT technique, in particular to an astronomical system for the automatic control of recievering.

1.1el1, th invention is more accurate control due to the introduction in the design of the device microswitch, an additional stopper on the second sponge and the execution of one of the arms of the lever with a groove, the value of which is chosen equal to the tolerance on a controlled size.

The drawing shows a device for automatic control of the external dimensions of parts, a general view.

12

The device comprises a housing 1 made in the form of a bracket, a sponge 2 with a base surface 3 rigidly fixed on the housing 1, a second sponge 4 mounted in the housing 1 movable in a direction perpendicular to the base surface 3. On the housing 1 there are two prismatic openings 5 and 6; The second prismatic hole 6 passes through the second slab 4. The latter is equipped with a stopper 7, imprinted with supporting surfaces 8 and 9, and a handle. The casing is pivotally mounted in a plane perpendicular to the base surface 3 of the jaw 2, a double-arm lever 10, one arm of which is in contact, with the jaw 4, and on the second shoulder there is a slot 11 whose sides are parallel to the base surface 3 of the jaw 2 and the size of the slot 11 chosen equal to tolerance on controllable size. Each of the support surfaces 8 and 9 of the stopper 7 is intended for contact with one of the sides of the groove 11.

A spring 12 is fixed inside the housing 1, which ensures that the lever 10 returns to its original position, and a microswitch 13, which gives a signal about the validity of the monitored ones.

Device for automatic control of the external dimensions of the parts works as follows.

The controlled part is installed in prismatic holes 5 and 6 of the housing 1, while the spring-loaded sponge 4 is pushed aside with a handle. When lowering the handle, the sponge 4 presses the measured part to the sponge 2 and creates the necessary measuring force. One end of the measured part presses on one of the shoulders

20

H 25,

260657 2

for a shoulder arm. 10. If the item is controlled by a detail (it is of an acceptable size, the stopper 7 contacts the support surface 8 with the 5 left c TopoHOv i of the groove 11 of the lever 10 and does not allow it ps) to turn around, therefore, the second shoulder of the two shoulders . chaga 10 does not affect the microswitch 13. E. If it is controlled by an item that is larger than the maximum allowable size, the stopper 7 contacts the supporting surface 9 with the right side of the groove 11 of the two shoulders lever 10 and also prevents it from turning and 15 closes the microswitch, 13. If a controlled part lies in this range of controlled size, i.e. within the tolerance for size, the stopper 7 is inside the groove 11 of the lever 10, which, under the weight of the monitored part, rotates at a certain angle and with its second arm closes the microswitch 13, which gives a signal about the validity of the part. After removing the parts, the lever 10 returns to its original position by the spring 12.

thirty

25

Claims (1)

Invention Formula Device for automatic control of external dimensions of parts comprising a housing, a first sponge with a base surface rigidly fixed on the housing, a second sponge mounted in the housing with a possibility of movement in the direction perpendicular to the base surface of the first sponge, two shoulders lever mounted on the housing with the possibility of rotation in the plane perpendicular to the base surface of the first sponge, spring-loaded relative to the body and in contact with the second arm and the second sponge, and the stopper with the supporting surfaces placed on the second jaw, characterized in that, in order to increase the control accuracy, it is equipped with a microswitch attached to the housing and in contact with the second lever arm, the latter is made with a groove, the sides of which are parallel to the base surface of the first jaw, the slot size is equal to the tolerance on the dimension is controlled, and each of the supporting surfaces of the stopper is designed to contact one of the sides of the groove.