RU2272309C1 - Alignment device - Google Patents

Abstract

FIELD: the invention refers to the field of precise instrument manufacturing and may be used for alignment of optical elements in devices with changing parameters of environment and working under vibration and percussive influences.

SUBSTANCE: the alignment device has a body, an optical element with slants, adjusting screws and elastic elements installed opposite to adjusting screws and interacting with slants on the optical element. At that each elastic element is fulfilled in the shape of a screw made hollow with inner opening which longitudinal axle coincides with the longitudinal axle of the screw, between the screw and the optical element there is an intermediate washer of conical form , the conical surface of which is mated with reciprocal slant of the optical element and in the bow part of the screw there are slits fulfilled transparent and communicable with the inner opening of the screw. At that the slits are fulfilled cruciform and transversal with each other and with the longitudinal axle of the screw.

EFFECT: increases accuracy, decreases receptivity to exterior influences and dimensions.

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Description

The invention relates to precision instrumentation and can be used for alignment of optical elements in devices with changing environmental parameters and operating under vibration and shock.

Known adjustment device containing a housing, a holder for an optical element, adjusting screws mounted perpendicular to the axis of the device and interacting with the holder of the optical element, see Yu.V. Sharlovsky "Adjusting devices and their elements." M.: Mechanical Engineering, 1976. Fig. 5-8. S.125.

The thread on the micrometer screws and the holder of this device does not provide tight mating of parts in the radial direction, in addition, the screws are installed in the holder on the thread, which reduces the accuracy of basing and reliability of fastening.

A device for optical elements is known, comprising a housing, a base with an optical element mounted on it, a ring mounted between the housing and the base, clamping elements connected to them, see patent of the Russian Federation No. 2141682 for cl. G 02 B 7/18, publ. 1999.

This device is designed to align optical elements that do not require increased requirements for external influences.

A differential reading device is known comprising a differential screw with multidirectional threads, one end of which interacts with an actuating element through a cylindrical spring, and the other end of which, by means of a hollow hole and a collet interacting with balls, fixes the differential screw, a hollow screw with multidirectional threads on the external and internal surfaces, adjusting screw for fixing the hollow screw relative to the differential and coil spring, size ennuyu in place of the differential screw contact with the actuating element, see. patent of the Russian Federation №2025622 tml. F 16 N 25/20, publ. 1994. This device is used as a quotation device.

The known device has a complex structure and large dimensions, which limits its use in small-sized devices at various temperature and vibration influences.

The elastic element of this device, made in the form of a cylindrical spring, does not provide contact with the actuating element having bevels, which limits the scope of the device.

In the known device, the hollow hole in the differential screw is eccentric to its external thread, which does not provide the same effort when the collet is used, this reduces the reproducibility of the position of the differential screw itself and of the hollow screw with multidirectional threads in the fixing process.

Known adjustment device comprising a housing, an optical element with bevels, adjusting screws and elastic elements mounted opposite the adjusting screws and interacting with bevels on the optical element, see "Reference designer of optical-mechanical devices" / ed. V.A. Panova. L .: Engineering, 1980. R.5.38. S.303.

This technical solution is taken as a prototype of the present invention.

However, it has disadvantages.

In the alignment device of the prototype, to compensate for the dimensions of the optical element under external influences, elastic elements are provided in the form of flat springs in one section and an elastic element in the form of a compression spring in another section, while the radially curved flat springs used to mount the optical element in another section take large space, and the elastic element in the form of a compression spring has significant axial dimensions, this increases the dimensions of the device.

The present invention is based on the solution of a technical problem that allows reducing dimensions, increasing accuracy and eliminating jerky movement during alignment and reducing susceptibility to external influences.

According to the invention, this problem is solved due to the fact that the alignment device comprises a housing, an optical element with bevels, adjusting screws and elastic elements mounted opposite the adjusting screws and interacting with the bevels on the optical element.

Each elastic element is made in the form of a screw made hollow with an internal hole, the longitudinal axis of which coincides with the longitudinal axis of the screw, an intermediate cone-shaped washer is placed between the screw and the optical element, the conical surface of which is mated with the reciprocal bevel of the optical element, and in the nose of the screw the slots are located, made through and communicating with the inner hole of the screw, while the slots are made crosswise and intersecting with each other and with the longitudinal axis of the screw.

The applicant has not identified sources containing information about technical solutions identical to the present invention, which allows us to conclude that it meets the criterion of "novelty."

Due to the implementation of the distinguishing features (together with the features indicated in the restrictive part of the formula), important new properties of the object are achieved.

The implementation of each elastic element in the form of a screw (elastic and threaded parts are the same) reduces the dimensions of the device.

The execution of each elastic element in the form of a screw hollow with an internal hole and the presence of slots in the bow reduces the size of the adjustment parts.

The execution in the nose of the screw slots through and communicating with the inner hole of the screw confirm the use of the screw as an elastic element.

The execution in the nose of the screw slots cruciform and intersecting with each other and with the longitudinal axis of the screw eliminates the loss of accuracy of the device under external influences.

The placement between the elastic element in the form of a screw and the optical element of the intermediate washer ensures accurate alignment of the device.

The presence of a conical surface at the intermediate washer, a mating surface of the bevels of the optical element and their conjugation eliminates the jump-like movement during adjustment.

The applicant is not aware of any publications that would contain information on the influence of the distinguishing features of the invention on the achieved technical result. In this regard, according to the applicant, it can be concluded that the claimed technical solution meets the criterion of "inventive step".

The invention is illustrated by drawings, which depict:

figure 1 - General view of the alignment device (section);

figure 2 - section a - a in figure 1;

figure 3 - node B in figure 2;

figure 4 - view In figure 3.

The alignment device contains:

Building 1.

Optical element 2.

- bevel (optical element 2) 3. Adjusting screw 4. An elastic element in the form of a screw 5,

- inner hole (in screw 5) 6,

- the longitudinal axis (holes 6, coinciding with the axis of the screw 5) 7,

- the nose (screw 5) 8,

- cruciform cuts (in the bow 8) 9.

Conical washer 10

- conical surface (washers 10 reciprocal bevel 3) 11.

The alignment device contains an optical element 2. The optical element 2 has a bevel 3 and is installed in the housing 1. Elastic elements in the form of screws 5 are mounted opposite the adjustment screws 4. Each elastic element in the form of a screw 5 is made hollow with an internal hole 6, the longitudinal axis 7 of which coincides with the longitudinal axis of the screw 5. In the nose 8 of the screw 5 are slots 9 made through and communicating with the inner hole 6 of the screw 5. The nose 8 has a sharp conical shape. The slots 9 are made crosswise and intersecting with each other and with the longitudinal axis 7 of the screw 5. The width of the slots 9 is less than the diameter of the inner hole 6 of the screw 5.

Between the screw 5 and the optical element 2 is placed an intermediate washer of a conical shape 10, the conical surface 11 of which is mated with its reciprocal bevel 3 of the optical element 2.

Alignment device operates as follows.

With the joint (or separate) rotation of the adjusting screw 4 and the elastic element in the form of a screw 5, the optical element 2 moves in the direction perpendicular to the axis of the device. When joint (or separate) rotation of another pair, consisting of an adjusting screw 4 and an elastic element in the form of a screw 5, the optical element 2 moves in the perpendicular direction, thereby adjusting it.

When operating the device in conditions with changing environmental parameters (for vacuum equipment, for outer space), the optical element 2 changes its dimensions, while the nose 8 of the elastic element 5 is deformed. To compensate for the size of the optical element 2, the elastic elements 4 are made in the form of screws with an internal hole 6, and the nose 8 is divided by slots 9, crosswise located relative to the longitudinal axis 7 of the elastic element 5 and made through.

Providing the device with an intermediate washer of a conical shape 10, placing it between the screw 5 and the optical element 2 and pairing the conical surface 11 of the intermediate washer 10 with the bevel 3 of the optical element 2 eliminates the spasmodic movement of the screw 5 (when it rotates) due to the presence of slots 9 during adjustment operations .

The proposed adjustment device can be manufactured industrially, and this determines, according to the applicant, its compliance with the criterion of "industrial applicability". Using the proposed device allows you to:

- reduce the size;

- to exclude the jerky movement during adjustment;

- increase the accuracy of adjustment;

- reduce susceptibility to external influences.

Claims (1)

An adjustment device comprising a housing, an optical element with bevels, adjusting screws and elastic elements mounted opposite the adjusting screws and interacting with the bevels on the optical element, characterized in that each elastic element is made in the form of a screw made hollow with an internal hole, the longitudinal axis of which coincides with the longitudinal axis of the screw, an intermediate cone-shaped washer is placed between the screw and the optical element, the conical surface of which is paired with the reciprocal optical bevel eskogo member, and the bow propeller disposed slots formed through and communicating with the internal screw hole, wherein the cross-shaped slits formed and intersecting with each other and with the longitudinal axis of the screw.

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