The multi axis combination of linear modules is more and more widely used in the automatic production line. Without sufficient technical experience, problems are likely to occur during the installation process. However, if you choose a professional linear module manufacturer pdv, you will certainly be able to avoid various problems and complete the installation and debugging efficiently. Today, PDV introduces some problems that you need to pay attention to in the multi axis application of the sliding table.
First, flatness of linear module
When installing the bottom surface of the module, if the plane is too large, the bottom surface of the sliding platform will be forcibly locked, the linear guide rail and the ball screw will have strong bending deformation, which is easy to cause the sliding platform to fail to operate, which will sharply shorten the service life of the module. Generally speaking, for precision linear modules, the flatness of the installation bottom should be less than 0.02mm/mm.
Second, the motor shaft and the lead screw shaft end of the linear module are concentric.
Generally, we will use couplings to eliminate a certain eccentricity when installing modules. However, if the concentricity runout value of the two exceeds the allowable range of the coupling, it will accelerate the damage of the coupling, resulting in abnormal sound of the coupling and fracture, which should be avoided as far as possible.
Third, the cantilever shaft travel of the sliding platform module is too long, and the overhanging length is too long.
If the cantilever length is too large in the multi axis combination, we should pay attention to that this situation will cause the allowable torque overload of the guide rail. At different acceleration and deceleration speeds, the vibration generated during beam retraction will be finally absorbed by the electric sliding table. Long time vibration will shorten the life of the guide rail.
Fourth, the inductive switch of the sliding table module collides with the inductor due to deformation.
If your slide inductive switch is deformed, it will inevitably collide with the photoelectric switch and cause damage to the photoelectric switch. Therefore, before powering on and sliding the slider, we should check that you can pass the photoelectric switch normally.
Fifth, the load of the linear module exceeds the service limit.
The product model selected by the module manufacturer according to the demand has a certain handling load limit, and the influence of cantilever force and acceleration/deceleration change should also be considered. We must pay attention to reserve sufficient safety factors.
Of course, in the more complex multi axis combination application of linear module, uneven installation height is very easy to occur. For example, if the guide rail is uneven during gantry installation, the linear module will be stuck and the module will be damaged. We suggest that you consult with the professional linear module manufacturers when applying multi axis combination, and discuss the application details with the manufacturers.
