The invention discloses a device for comprehensively measuring linear guide rail
friction force and manufacturing and mounting errors, and belongs the technical fields of measurement. The device for comprehensively measuring the linear guide rail
friction force and the manufacturing and mounting errors mainly comprises a linear feeding
system, a guide rail and sliding block
friction force measuring device, a guide rail
linearity error measuring device and a guide rail mounting parallelism error measuring device. The guide rail and sliding block friction force measuring device drives a sliding block to move through a
servo motor to achieve measurement of the dynamic friction force of the sliding block at different running speed and under different loading effects, and the value of the friction force can be obtained by utilizing a pull
pressure sensor. The guide rail mounting parallelism error measuring device converts parallelism errors among guide rails into
internal stress of a connecting rod, and the values of the parallelism errors can be obtained through measurement of the pull
pressure sensor. A standard straight
gauge block is utilized by the guide rail
linearity error measuring device as a reference of measurement, the
linearity error of the guide rails is converted into changes of compression amount of a spring, a least square method is utilized for
processing, measurement is convenient, and measurement accuracy is high.