SU905055A1

SU905055A1 - Skewable rotary adjustment table

Info

Publication number: SU905055A1
Application number: SU802937027A
Authority: SU
Inventors: Герман Ильич Федорищев; Леонид Львович Альперин; Юрий Александрович Степин; Валентин Петрович Братов; Виталий Викторович Антонов
Original assignee: Предприятие П/Я Р-6681
Priority date: 1980-05-27
Filing date: 1980-05-27
Publication date: 1982-02-15

Description

(54) нАклонноповоротный юстировочный столик(54) downward adjustment table

1one

Изобретение относитс к точному приборостроению и может быть использовано дл прецизионного ориентировани юстируемой детали.The invention relates to precision instrument making and can be used for the precision orientation of an adjustable part.

Известен наклонноповоротный юстировочный столик, содержащий опорную систему в виде сферической пары, состо щей из подвижной и неподвижной частей, и планщайбу , установленную с возможностью поворота вокруг координатных осей, пересекающихс в общем центре качани 1.The inclined rotational adjustment table is known, which contains a supporting system in the form of a spherical pair consisting of movable and fixed parts, and a plate that can be rotated around coordinate axes intersecting in a common center of swing 1.

Недостатком известного столика вл етс расположение центра качени ниже планщайбы , что приводит к значительным линейным смещени м юстируемого объекта при его наклонах.A disadvantage of the known table is the location of the center of the roll below the planing plate, which leads to significant linear displacements of the object being adjusted when it is tilted.

Цель изобретени - повыщение точности и производительности юстировки за счет исключени линейных смещений оптической оси юстируемой детали при ее наклонах в процессе юстировки.The purpose of the invention is to increase the accuracy and performance of the alignment by eliminating linear displacements of the optical axis of the part being adjusted when it is tilted during the alignment process.

Цель достигаетс тем, что в наклонноповоротном столике подвижна часть опорной системы выполнена в виде щарового сегмента, жестко св занного с планщайбой, а неподвижна - в виде вогнутой сферыThe goal is achieved by the fact that in the inclined rotary table the movable part of the supporting system is made in the form of a spherical segment rigidly connected with a plate-cover, while the fixed part is in the form of a concave sphere.

с радиусом, равным радиусу щарового сегмента , причемwith a radius equal to the radius of the spherical segment, and

R а + Ь,R a + b,

Т - радиус вогнутой сферы; T is the radius of the concave sphere;

где а - рассто ние от опорнойwhere a is the distance from the reference

поверхности до планшайбы; Ь - рассто ние от планщайбы до цент10ра качани .surface to face; B is the distance from the plate to the center of the swing.

Таким образом, центр качани данного столика расположен на определенном рассто нии над планщайбой.Thus, the center of swing of this table is located at a certain distance above the plate.

Дл изменени этого рассто ни опорна система выполнена в виде комплекта сменных пар с разными радиусами сферических поверхностей.To change this distance, the support system is designed as a set of interchangeable pairs with different radii of spherical surfaces.

На фиг. 1 изображен наклонноповоротный столик, общий вид, разрез; на фиг. 2- сечение А--А на фиг. 1.FIG. 1 shows a tilt table, a general view, a section; in fig. 2 is a section A - A in FIG. one.

Claims

20 The table contains a stationary body 1, rigidly connected to a concave spherical support 2, on which, a convex spherical mobile part of the support system 3 rests. and opposing spring links with locking heads 7. To adjust, release the knobs of the locking heads 7; by turning the micrometers 6, turn the faceplate 4 around three mutually perpendicular axes intersecting at the point O, before being set to the desired position; at the end of the adjustment, tighten the locking heads 7. Placing a truncated ball between the support system and the faceplate allows all micrometers and opposing spring members to be placed in the same plane and, as a result, significantly reduce the overall height of the table in comparison with the known one. Such an embodiment of the adjustment table allows placing an adjustable element on it so that the optical axis of the latter passes through the point O of the intersection of the axes of rotation of the table. In this case, linear displacements of the element to be adjusted during the alignment process are eliminated, the accuracy and performance of which, as a result, substantially increase. Claims. An inclined rotational adjustment table containing a support system in the form of a spherical pair consisting of movable and fixed parts, and a faceplate mounted for rotation around coordinate axes intersecting in a common swing center, characterized in that, in order to improve positioning accuracy, the movable the support system is made in the form of a spherical segment, rigidly connected with the faceplate, and stationary - in the form of a part of a concave sphere, with a radius equal to the radius of the spherical segment, and concave sphere; a is the distance from the bearing surface to the faceplate; B is the distance from the face plate to the center of swing.

2. A table according to claim 1, characterized in that the support system is designed as a set of interchangeable pairs with different radii of spherical surfaces. Sources of information taken into account in the examination 1. Optische banke aus granit of the firm Spindler i Hoyer. Catalog. Germany, the cipher P046, P080, 1976, p. 60

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