SU1000234A1 - Indexing apparatus - Google Patents

Description

(54) WORKING DEVICE

one

The invention relates to mechanical engineering and can be used in all sectors of the national economy in transport devices, various auto-operators and manipulators, where it is necessary to transform the reciprocating movement into rotary with stops at the positions and where the turning and fixing of turning nodes with significant masses on the required angle of rotation with the smallest dynamic loads.

A separating device is known, in the casing of which a cam connected to a reciprocating movement with two facing heads is installed. the opposite sides of the wedges, having inclined and parallel with respect to the direction of movement of the face, interacting with the fingers mounted on the periphery of the disk placed on the pinch of the device 1.

The disadvantages of the known dividing device are the need to increase the time for turning the table due to arising at the time of its stopping.

significant dynamic loads during the rotation of large masses, as well as its low durability, resulting from the impact of the above-mentioned loads on the mechanism.

The purpose of the invention is to increase the durability of the device by reducing the dynamic loads.

Claims (2)

This goal is achieved in that a separating device containing a reciprocating cam with two opposite-facing wedges having inclined and parallel faces interacting with the fingers of the disk installed with the possibility of rotation on the spindle of the device, an additional disk is inserted that is made with protrusions located with the possibility of interaction with the above fingers through spring-loaded plungers. Additional disk is rigidly fixed on the spindle. Such an embodiment of the device ensures a smooth and unstressed stop of the rotary table mounted on the spindle, which allows increasing the durability of the device. FIG. 1 shows a separating device, a slit; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 1 (cam in extreme right position). The separating device comprises a housing 1, in which a rotary table 3 is fixed on the spindle 2 for the installation of transported products. At the lower end of the spindle 2 on the bearing 4 mounted disk 5, which has the possibility of free rotation relative to the spindle 2. In the disk 5, the fingers 6 are installed, interacting with their part located below the disk 5, with two wedges of the double-sided cam 7 mounted in opposite directions, mounted in the housing 1 with the possibility of reciprocating movement from the drive 8. The wedge has inclined C and parallel D with respect to the direction of movement of the cam 7 faces, with the greatest width of the cam wedges greater than the distance between two adjacent fingers. On spindle 2, above disk 5, an additional disk 10 is fixed, for example, by key 9, an additional disk 10 having projections E located between adjacent fingers 6, the distance between which is greater than the width of these projections. The fingers 6 interact with the projections E of the disk 10 with a part located above the disk 5. In the projections E from the side directed in the direction of the table rotation, the plungers 11 with springs 12 are installed. Moreover, the axis of each plunger 11 lies in the plane passing through the axes of two adjacent fingers 6, between which are the protrusions of the disk 10. The device operates as follows. In the initial position, the cam 7 is in the extreme right position. The right wedge of the cam 7, located between two adjacent fingers 6, wedges them, fixing the table 3 from the turn. When moving the cam 7 under the action of the actuator 8 to the left, the face C of the left wedge tilts, interacting with the finger 6, ensures the rotation of the disk 5 clockwise. At the same time, the fingers 6, interacting with their upper part with the edges of the projections E of the disk 10 on the side opposite to the direction of rotation, provide rotation of this disk and the spindle 2 rigidly connected with it with the turntable 3 clockwise. The rotation of the disk 5 will occur until the finger 6, closest to the face D of the left wedge, parallel to the direction of movement of the cam 7, comes into contact with the latter. After that, the disk is stopped, the wedging of two adjacent fingers 6 of the left wedge and their fixation. At the same time, the rotary table 3 together with the products mounted on it and the spindle 2 rigidly connected with it and the disk 10 continues to rotate by inertia. As a result, the plungers 11 are embedded inside the projections E of the disk 10 and the springs 12 are compressed, which gradually reduce the speed of rotation of the rotary part of the dividing device until it stops completely. In the next moment, under the action of the compressed springs 12, the disk 10 together with the spindle 2 and the rotary table 3 rotates in the opposite direction (counterclockwise) until the faces of the projections E of the disk 10 located on the side opposite to the direction of rotation come into contact with fingers 6. A smooth, unstressed stop occurs and an exact fixation of the turntable together with the products fixed on it at the next working position. During the return stroke of the cam 7, the operation of the dividing device is similar to that described above. The number of plungers 11, their stroke, the distance from their axes to the axis of rotation of the turntable 3, and the stiffness of the springs 12 are determined depending on the weight of the turntable 3 and the products mounted on it, as well as from the distance from their centers of gravity to the axis rotation The use of the invention allows, by significantly reducing the dynamic loads acting on the device when the turntable is stopped and fixed, to increase the durability of the device. Claims of the invention: A separating device, in the casing of which a cam connected to a reciprocating movement is installed, with two oppositely facing wedges having inclined and parallel relative to the direction of movement of the face, interacting with the fingers fixed on the periphery of the disk placed on the spindle of the device, differing By the fact that, in order to increase the durability of the device by reducing the dynamic loads, the device is rigidly connected to the spindle It is equipped with an additional disc with protrusions interaction by means of spring-loaded plungers inserted into the disk with the fingers of the main disk, which is rotatably mounted relative to the spindle .. Information sources, . taken into account in the examination 1. Bolotin X. L. Mechanization and automation of machine tools. Mashgiz, 1962, p. 48-49, f. 26 2