Patent ID: 9506857
Filing Date: 2016-11-29
CPC Classification: G01N

Claim Text:
1. An automatic observation apparatus for detecting mineral samples, comprising a base, a supporting arm, a sample fixing device, a stepper motor, a high-definition camera and a control system, characterized in that a refractometer is fixed on the base; the supporting arm is L-shaped, a vertical through hole is formed at the top end of the supporting arm, and a lifting rod penetrates through the vertical through hole and is matched with the vertical through hole in shape; the lifting rod is a cylinder having a frustum at the top end; a drive rack is provided on the side of the cylinder of the lifting rod, and a vertical through hole is formed in the lifting rod; a stepper motor is mounted at the top end of the frustum of the lifting rod, an output shaft of the stepper motor penetrates through the vertical through hole of the lifting rod to be connected with the sample fixing device, and the sample fixing device is in shaft-hole fit and interference connection with the output shaft of the stepper motor; a cavity is formed at the top end of the supporting arm, a gear is mounted in the cavity, and the gear is meshed with the rack of the lifting rod; a drive shaft horizontally penetrates through the center of the gear and is fixedly connected with the gear, a cross-section of the drive shaft is a regular hexagon, a left knob and a right knob are respectively provided at two ends of the drive shaft, and the lifting rod is positioned by a positioning pin placed at the upper end of the supporting arm; the sample fixing device is a regular hexagonal prism shell with the top end sealed, a spring is arranged in a vertical hole of the sample fixing device, a sample positioning head mounting device is arranged at the lower end of the spring, and the sample positioning head mounting device is clamped in the vertical hole of the sample fixing device by the pin to prevent it from falling off; a blind hole is formed at the lower end of the sample positioning head fixing device and has a regular hexagonal cross-section of the blind hole, the sample positioning head has a regular hexagonal cross-section and is matched with the blind hole at the lower end of the sample positioning head fixing device; the sample positioning head fixing device is magnetized, and the sample positioning head made of metal is sucked in the blind hole; a soft rubber cushion is stuck to the lower end of the sample positioning head; the high-definition camera is connected with a data card by a first transmission cable, and the data card is connected with the control system by a second transmission cable; and the stepper motor is connected with a stepper motor driver by a third transmission cable, the stepper motor driver is connected with a stepper motor driving card by a fourth transmission cable, and the stepper motor is connected with the control system by a fifth transmission cable.