The invention relates to a
laser detection device and method for gear parameters. The
laser detection device is characterized in that a worktable is provided with an
internal point; a
laser displacement sensor is arranged on a bracket; the bracket is arranged on a
linear motor sliding block of a sliding table; the sliding table is arranged on an
angular displacement rotating
system and is fixedlyconnected to a rotating disk together with a rotating shaft; a casing of the
angular displacement rotating
system is arranged on a lifting arm through screws; the lifting arm is connected with the vertical surface of a
machine body through a high-precision linear guide rail and a sliding block; a
servo motor drives a
ball screw which is fixedly connected to the vertical surface of the
machine body to rotate; and a
data acquisition and communication
system is arranged on a rotating shaft upper plane of the
angular displacement rotating system. Tested workpieces are subjected to data measurement, acquisition, transmission, reconstruction, separation, comparison and display to finish the full process of detection. According to the
laser detection device and method, the non-contact and
blind spot-free measurement is realized, the detection speed and
measurement precision are improved; the difficult problem that a
pinion is difficult to detect is solved; and in the measuring process, the gear is stationary and a measuring head does measuring movement, thus the measuring error caused by mounting the gear is reduced.