SU692716A1 - Rotary dividing table - Google Patents

Description

(54) ROTARY DIVISION TABLE

I

The invention relates to mechanical engineering.

Rotary pivoting tables are known, which contain a mechanism for periodic rotation of the faceplate with position sensor 1.

Known tables are difficult to customize to set up the working positions in the required sequence within the faceplate turnover.

The aim of the invention is to reduce the setting time of the table for installation at the desired operating positions.

For this, the mechanism of periodic rotation is made of a hinged-gear, including a parasitic and solar wheel, pivotally connected by a link on which the pin of the position sensor is fixed.

FIG. 1 given the kinematic scheme of the rotary table; in fig. 2 - hinged gear mechanism, top view.

The controllable table drive consists of a hydraulic motor 1 with an electromagnetic distributor 2. The hydraulic motor 1 is connected to an articulated gear mechanism of periodic movement by means of a clutch 3. Last

consists of a crank shaft with a leading neck, thorns 4, a spurious gear 5, freely rotating on the shaft 6, a sun wheel 7 fixed on the shaft 8, and also a link link 9 connecting the

the drive shafts 4 and the parasitic wheel 5, and the link 10 pivotally connecting the shafts of the sun and parasitic 5 wheels. The dimensions of the links 9 and 10 are selected depending on the sizes of the wheels 4, 5, 7 so that the wheels are in constant gearing and do not jam when turning the mechanism. The link 10 is rigidly fixed measles 11. The washer 12, rigidly connected to the shaft 8, rests on the housing 13 of the turntable, on which is mounted

proximity sensor 14 position, connected by an electrical circuit with the electromagnet of the distributor 2 through the relay 15 of the pulse account.

Claims (1)

On command from the button of the control system (not shown), the electromagnetic valve 2 is installed in the position in which the working fluid enters the hydraulic motor 1. The hinged-gear mechanism begins to move and the faceplate turns 12. When the hinged-toothed gear moves, the link 10, equipped with a bark, oscillates and measles 11 exits the proximity sensor 14. When approaching the faceplate 12 to the next working position, through one revolution of the crank hinged-gear mechanism, the speed and acceleration of the driven sun wheel decrease to zero, providing an unstressed smooth stop and a short-term kinematic suction of the sun wheel 7 with a 12 in face plate. working position. At the same time, during its oscillation, the link 10 inserts the measles into the position sensor 14, which sends a signal to the pulse counting relay 15 and through it to the electromagnetic distributor 2, the actuator puts the switch into a horizontal position, the hydraulic motor 1 stops rotating the hinged-toothed mechanism, faceplate 12 stops at the working position and takes up the initial position for the next turn. The drive is stopped in the required operating positions by the relay 15 for counting pulses. When the number of received pulses coincides with the preset ones, an electrical signal is issued to switch off the controlled drive. - Formula of the invention A rotary dividing table containing a mechanism for periodically rotating the faceplate with a position sensor, characterized in that, in order to reduce the table setting time for installation in the required working positions, the periodic rotation mechanism is hinged, including parasitic and solar wheels, hingedly connected by a link on which the pin of the position sensor is fixed. Sources of information taken into account in the examination 1. USSR author's certificate .NO 315566, cl. On 23 Q 17/02, 1970. eleven