High-precision detection system

The invention discloses a high-precision detection system comprising an operation carrying table, a testing assembly installed on the upper surface of the operation carrying table, a feeding mechanismlocated on one side of the testing assembly, a discharging box located on the other side of the testing assembly, and a material conveying assembly installed on the upper surface of the operation carrying table. The material conveying assembly further comprises a support, a lead screw installed on the support, a motor connected with one end of the lead screw and a material conveying chuck. The lead screw is sleeved with a sliding block in threaded connection with the lead screw. The material conveying chuck is installed on the sliding block and can reciprocate along with the sliding block, aprotruding ring part protruding downwards is arranged on the edge of a pressing head, a sealing ring is arranged on the lower surface of the pressing head and located over the core body, and a groovepart allowing the protrudin