Chip mounter for mobile phone mainboard

The utility model discloses a mobile phone mainboard chip mounter which comprises an operation table, an operation frame and a supporting plate, the operation frame and the supporting plate are installed at the top end of the operation table, two pressure sensors used for detecting pressure are installed at the top end of the operation table, and detection plates matched with the pressure sensors are arranged on the two side faces of the supporting plate. A mounting groove used for mounting a supporting plate is formed in the top end of the operation table, a spring is connected between the supporting plate and the bottom wall of the mounting groove, and a mounting plate used for placing a mainboard is detachably connected to the top end of the supporting plate; the top end of the operation frame is connected with a telescopic cylinder, a piston of the telescopic cylinder penetrates through a through hole of a cross beam of the operation frame and extends to the position below the through hole, and a chip mou