SU934213A1

SU934213A1 - Projector for gauging articles

Info

Publication number: SU934213A1
Application number: SU721780564A
Authority: SU
Inventors: Юрий Серафимович Парняков; Антон Гаврилович Хавруняк; Альберт Ефимович Богачев
Original assignee: Предприятие П/Я Р-6495
Priority date: 1972-05-04
Filing date: 1972-05-04
Publication date: 1982-06-07

Description

1one

Изобретение относитс к контрольно-измерительной технике, а именно к конструкции проекторов дл контрол размеров изделий, например рундиста драгоценных камней.This invention relates to an instrumentation technique, in particular, to the construction of projectors for controlling the dimensions of products, for example, girdle of precious stones.

Известны проекторы дл контрол размеров изделий, содержащие осветитель , штатив, проекционную часть и механизм перемещени .Projectors for controlling the dimensions of products are known, comprising an illuminator, a tripod, a projection part and a moving mechanism.

Однако эти проекторы, во-первых, не позвол ют контролировать размеры изделий, лишенных возможности перемещений в плоскости контрол , а во-вторых , они достаточно сложны по конструкции и отличаютс значительными габаритами.However, these projectors, firstly, do not allow controlling the dimensions of products that are deprived of the possibility of displacements in the plane of control, and secondly, they are rather complicated in design and differ in considerable dimensions.

Цель изобретени - контроль размеров изделий, не имеющих применени в плоскости контрол , упрощение и уменьшение габаритов.The purpose of the invention is to control the dimensions of products that have no application in the plane of control, to simplify and reduce dimensions.

Поставленна цель достигаетс тем, что проекционна часть выполнена с возмохностью одновременного и независимого перемещени в направлени х трех взаимно перпендикул рных осей,что дает возможность контролировать неподвижные или жестко закрепленные в обточных станках издели , а механизм перемещени выполнен из двух соосных втулок,наружна из которых неподвижно закреплена на штативе, а на верхнем торце втулки установлен координатный столик- с центральным отверстием, на котором укреплена The goal is achieved by the fact that the projection part is made with the possibility of simultaneous and independent movement in the directions of three mutually perpendicular axes, which makes it possible to control fixed or rigidly fixed in the turning machines of the product, and the movement mechanism is made of two coaxial bushings, the outer of which is fixed mounted on a tripod, and at the upper end of the sleeve is a coordinate table, with a central hole on which is fixed

10 проекционна часть с объективом, вход щим в это отверстие.10 is a projection part with a lens entering this opening.

На фиг.1 изображен предлагаемый проектор, вид сбоку; на фиг,2 то же, со стороны оператора.Figure 1 shows the proposed projector, side view; Fig, 2 is the same, from the operator.

1313

Проектор дл контрол размеров деталей содержит штатив 1, укрепленные на штативе осветитель 2, конденсатор 3, зеркало и защитное стекло 5, лупу 6 дл контрол частоты The projector for controlling the dimensions of the parts contains a tripod 1, mounted on a tripod illuminator 2, a capacitor 3, a mirror and protective glass 5, a magnifier 6 for controlling the frequency

Claims

20 of the workpiece, frame 7, a projection part with a telecentric lens 8 and a movement mechanism. 39 The projection part of the device includes a pentaprism 9, a mirror 10, a matte screen 11, a casing 12 a mirror 13, a projection eye I, a grid of $ 1 and a housing 16.; The movement mechanism of the projection part is made in the form of a sleeve 17, an internal sleeve 18, a nut 19, a ring 20, a bottom plate 21 with a groove which includes a guide protrusion of the bar 22 having a second straight protrusion entering the groove of the plate 23 intended for the fastening of the projection part of the screw 2 fixes the position of the inner sleeve 18 relative to the natural sleeve 17. The scale 25 with pointer 26 serves to control the angular dimensions of the workpiece with the help of a micrometer screw 27 installed in the bracket 28 and spring-loaded pusher 29 performs the movement of the projection part along the axis of the spindle of the machine, and the position of the magnifying glass 6 can be adjusted by rotating and moving Holder 30, bracket 31 and fixed by screw 32. The projector works as follows, passing from the illuminator 2 through the capacitor 3 , a mirror and a protective glass 5 rays of light illuminate the workpiece fixed in the machine. The shadow image of the part using the lens 8 of the projection part, and pentaprism 9 is constructed in the plane of the grid 15, having, for example, a crosshair, 4 for example. The image of the part and the grids are jointly designed by the eye with the help of mirrors and viewed by the operator on the screen 11. The image is a visual formula 1. A projector for controlling the dimensions of products, such as a girdle of precious stones, containing an illuminator, a tripod, a projection part and a mechanism for moving, distinguishing and by the fact that, in order to control the sizes of products that do not have movement in the plane of control, the projection part in it is made with the capacity of simultaneous and independent movement in the directions of three perpendicular spaces nstvennyh axes, two of which lie in a horizontal plane and turning about a third vertical axis coinciding with the optical axis of the projection lens portion.

2. The projector according to claim 1, about tl and the fact that, in order to simplify and reduce the size, the movement mechanism is made in the form of two coaxial bushings, the outer of which is fixed on the tripod, and on the upper end of the sleeve, the possibility of turning and moving along the vertical axis, a coordinate table with a central hole is installed, on which a projection part with a lens entering this hole is fixed.

FIG. one