30results about How to "Reduce human measurement error" patented technology

The invention provides a combined positioning device and a positioning method. The combined positioning device comprises a bottom plate and a supporting part; the bottom plate is provided with a first guide rail; the first guide rail is parallel to a bottom plate; the first guide rail is provided with a first sliding block and a second sliding block; the first sliding block and the second sliding block are respectively provided with a first pointer-type dial indicator and a second pointer-type dial indicator; the supporting part comprises a transverse section and a vertical section; the transverse section is fixedly connected with the bottom plate; the vertical section is vertical with the bottom plate; the transverse section is provided with a positioning hole; the positioning hole is used for mounting a probe seat of a probe assembly; the vertical section is provided with a second guide rail; the second guide rail is vertical with the first guide rail; a third sliding block is arranged on the second guide rail; a positioning head is arranged on the third sliding block; the positioning head is parallel to the transverse part; and the positioning head is used for being limited at the center of a magnetic sucker positioning groove of the probe assembly. The combined positioning device and the positioning method have the advantages that the structure is simple, the positioning method is quick, artificial measurement errors are reduced, and the measurement efficiency and the application range of a three-coordinate measurement machine are further improved.