Installation points of machine tool trapezoidal screw
The installation quality of machine tool Trapezoidal Screws directly affects the precision and life of the equipment, so it is important to master the correct installation method.
I. Preparation before installation
Check the screw and bearing seat, nut and other parts to ensure that there is no scratch, deformation; ready for high-precision level meter, micrometer and other tools; clean the installation environment to avoid impurities affecting the accuracy.
Second, foundation installation and calibration
Install the support rail on the machine bed, calibrate the level with the level meter to ensure the straightness and parallelism; install the two ends of the bearing seat, ensure the "three points and one line" by pulling steel wire method or laser calibrator, and tighten the bolts according to the torque with the torque wrench.
Third, screw and parts installation
Smoothly place the trapezoidal screw in the bearing seat to avoid collision, and ensure that the screw axis is parallel to the support rail by adjusting the spacer; install the nut as close as possible to the support bearing to ensure that the threads fit well, and apply lubricating oil; the outer diameter of the auxiliary housing is smaller than the bottom diameter of the screw by 0.1 - 0.2mm, and it is installed by leaning against the shoulder of the screw threads, and the fixing bolts are tightened symmetrically.
Installation Precautions
Avoid excessive force to install each part, tighten the bolts according to the specified torque; the mounting holes need to be checked and cleaned in advance to prevent impact and eccentricity during installation; check the connection of the parts after installation, manually rotate the screw to check the flexibility, and test the transmission accuracy by no-load test run, and make timely adjustments if any abnormality is found.
