SU1515032A1 - Device for monitoring parameters of chamfers in holes - Google Patents

Abstract

This invention relates to a measurement technique. The aim of the invention is to increase the control productivity by simplifying the measurement result and expanding the functionality. The device with conical calibers 3 and 4 is installed alternately in a controlled hole, pressing the reference plane 2 to the end of the part. The chamfer size is defined as the difference between the two readings of the reference node 11. When checking the chamfer parameters in the holes in the plane, the dimensions of which exceed the dimensions of the reference plane 2 of the housing 1, the corresponding positions of the slider 14 on the crossbar 10 provide a kinematic connection of calibers 3 and 4 with the crossbar 10 and reading unit 11. After the measurement has been completed, under the action of the springs 8, the calibers 3 and 4 return to their original position. 1 hp f-ly, 2 ill.

Description

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SP

ate

about with

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kinematic connection of calibers 3 and 4 with cross bar 10 and reference node 11. After the end of

and to n

under the action of springs 8 caliber 3 and A return to their original position. 1 z.p, f-ly, 2 ill.

The invention relates to a measuring technique and is intended to control the parameters of the chamfers of the holes.

The purpose of the invention is to increase the monitoring performance by simplifying the measurement result, as well as expanding the functionality by allowing control of the parameters of the chamfers and holes on a plane whose dimensions exceed the dimensions

base plane of the hull.

FIG. 1 shows a device for checking the parameters of chamfers and holes, a general view; in fig. 2 is a general scheme for controlling the parameters of the chamfer of a hole.

The device contains a housing 1 with a base plane 2, in which are conical calibers 3 and 4, 1 equaling diameters 5 and 6 at the ends of the cones and the upper half of 1 cone equal to 8 lengths, and the angles of the cones are connected between the co6oii ratio

Lt

tg 2 K 2,

where 1 and l are the angles of the cones.

Screws 7 limit the amount of movement of gauges 3 and 4, which are spring-loaded with springs 8 relative to housing 1. I housing on axis 9 is fixed with a U yaurechina in the form of a single-arm lever in contact with calibers 3 II 4 and a measuring unit 1 1 fixed through a split sleeve 12 with screw 13 on housing 1,

Wherein

but

b FgTyr

de a is the distance from the axis of the lever to its point of contact with caliber 4, having an angle of cone;

b is the distance from the axis of the lever to its contact with caliber 3, having a cone angle / i; c is the distance from the axis of the lever to the point of contact with the reading unit 11,

0

five

0

five

thirty

35

40

50

55

A slider 14 is mounted on the crossbar 10 to provide for alternating contact between gauges 3 and 4 with the crossbar 10.

The device works as follows.

When measuring, clamping the base plane 2 device to the end of the part, conical calibers 3 and 4 alternately set in a controlled hole. In this case, caliber 3 or 4 makes a forward movement, compressing the spring 8, and through cross-section 10 transmits this movement to the stem of the reading unit 11. The chamfer size is defined as the difference between the two readings of the reading device, namely the readings when installed alternately with calibers 3 and 4 in controlled hole. When checking the chamfer parmeters in the holes on a plane that are larger than the base plane 2 of the housing 1, the correct position of the slide 14 provides a kinematic connection of calibers 3 and 4 with cross bar 10 and the reference node 11. After the measurement is completed, the action of the spring 8 caliber 3 and 4 returns to its original position. Fore (ula invention

Claims (2)

1. An apparatus for inspecting chamfer parameters in holes, comprising a housing with a base plane, a crossmember mounted for movement in the housing along an axis perpendicular to the base plane, and spring-loaded conical calibers connected to the cross member, the angles p and of the cones of which are connected between each other by the ratio tg p / 2: tg y / 2 2, and the reference node associated with the crossbar, characterized in that, in order to increase the productivity of the control, the crossbar is made in the form of a single shoulder. a / b tg / 3/2: tg s / 2; c a, where a is the distance from the axis of the lever to its point of contact with a caliber having a cone angle j; - distance from lever axis to point of contact with a caliber having an angle of / 3 cone; - distance from the axis of the lever to the point of its contact with the readout node. //////. isism. 2. The device according to claim 1, of tl and h ai yu and With the fact that, in order to distribute the functionality, it is equipped with a slider, mounted on a crossbar with the possibility of alternating contact with conical calibers. ffJU8.Z