1. Fruit juicer machine, comprising - a fruit feeder (2) (1) which in turn comprises - a basket (14) containing fruit and - a feeding ramp (15), - cutting and squeezing means of the fruits (1), arranged under the feeder (2), which in turn comprise - a pair of cups (3) receiving fruit (1) in solidarity with axes (5), vertically movable during the squeezing operation, - a pair of fixed vertical grooves (6) configured for guiding and vertical displacement of the shafts (5) during the squeezing operation, - a cutting assembly (7) arranged under the cups (3), vertically movable along of a central additional vertical groove (6 ') dragged by the cups (4) during the squeezing operation, which in turn comprises - an intermediate blade (8) configured for cutting the fruit (1) into two halves, - sliding tracks (9) on both sides of the blade (8) with openings (10) under the rotating arms ios (4) of the cups (3), - and means for extracting the crusts after squeezing, - and a pair of balls (11) squeezing the fruits (1), each arranged under an opening ( 10), and complementary to the cups (3), - a tray (12) for collecting the juice obtained from the fruits (1), arranged under the means of cutting and squeezing, which in turn comprises a filter (13) for the collection of pulp and seeds, - and means for collecting the fruit rinds (1), said fruit squeezing machine characterized in that it comprises - a position sensing sensor (18) connected to a magnet (19) arranged in the basket (14) fruit container and - a machine control system connected to the sensor (18) configured to prevent the operation of said machine when the sensor (18) does not detect the magnet (19) of the container basket (14) of fruits.1. Máquina exprimidora de frutos, que comprende - un alimentador (2) de frutos(1) que comprende a su vez - una cesta (14) contenedora de frutos y - una rampa de alimentación (15), - medios de corte y exprimido de los frutos (1), dispuestos bajo el alimentador (2), que comprenden a su vez