SU1713065A1 - Device for precision movement of articles - Google Patents

Abstract

The invention relates to mechanical engineering, and more specifically to devices for the precision movement of products, mainly in environmentally friendly environments. The purpose of the invention is to expand the kinematic capabilities of the device. For this, the number of piezoceramic transducers is six. They are associated with the table at one end and in pairs with a guide along the 1-coordinate structure. Piezoelectric transducers can also be made in the form of bimorphs. 1 hp f-ly, 3 ill.

Description

The invention relates to the field of engineering, and more specifically to devices for precision movement of products.

The known device for precision movement of products includes a table, a guide and an actuator made in the form of a piezoelectric transducer / 1-e, mounted at an angle and rigidly attached at the ends to the table.

The disadvantages of the known device are small kinematic possibilities, since precision movement is carried out only in a plane in three coordinates. "

The purpose of the invention is to expand the kinematic capabilities of the device.

Figure 1 shows a device for precision movement of products, side view; 2, the same top view; Fig. 3 is the same, side view with piezoelectric transducers in the form of bimorphs.

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The device for cutting products (Fig. 1, 2) contains table 1, guide 2, an actuator made in the form of six piezoelectric transducers 3-8, rigidly attached with ends 9-14 to table 1. Piezoelectric. The transducers 3-8 are associated with table 1 and in pairs with guide 2 along the 1-coordinate structure. Piezoelectric transducers can also be made in the form of bimorphs (Fig. 3) 15-20 (piezoplates fixed metal plates). In all cases, the transducers are connected to the guide 1 by means of supports with a contact 21-23.

The device for precision movement of products works as follows.

When voltage is applied to the piezoelectric transducers of FIGS. 1-8, the latter are deformed (reduced or increased in length), they move along the Z axis, while moving along other coordinates is accomplished by applying voltage to paired, interconnected piezoelectric elements. Moreover, the voltage is applied to paired piezoelectric elements at the same time, of the same sign and magnitude. This refers to the rotation around the X and Y axes, as well as to the displacement along these axes, which is carried out as follows. At the same time, the voltage is applied to two pairs of piezoelectric elements, but not to the third. It is then served on the third, and not on the first two. Due to the difference of the coefficients of static and dynamic friction of supports with a point contact relative to the guide table, it changes its position in space.

Rotation around the Z axis is as follows. The voltage is applied to each pair of piezoelectric elements successively one after the other, round. If the voltage is applied consistently

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clockwise, movement as a result of inertial forces is counterclockwise and vice versa.

The application of the invention allows to expand the kinematic capabilities of the device. It is advisable to use the device for operating 6 environmentally friendly media.

Claims (2)

Formula and inventions 1. Device for precision movement of products according to author. No. 529509, characterized in that, in order to expand the kinematic possibilities, three piezoelectric transducers, installed at an angle to the table and rigidly connected with one end and pairwise with the main piezoelectric transducers in the 1-coordinate structure, are additionally introduced into it. 2. The device according to A.1, about tl and h ya eu the fact that the piezoelectric transducers are made in the form of bimorphs. 2b .2. / f i6 / 7