Passive follow-up force-applied linear guiderail pair test bed with controllable load

Abstract

The invention relates to a passive follow-up force-applied linear guiderail pair test bed with controllable load. A horizontal load application mechanism is characterized in that a horizontal force application device is connected with a horizontal force application head by a horizontal pull pressure sensor, the end of the horizontal force application head is connected on the side surface of a stressed sliding table, and a base of the horizontal force application device is fixed on a stand by a left side linear guiderail pair; a vertical load application mechanism is characterized in that a vertical force application device is connected with a vertical force application head by a vertical force application device, the end of the vertical force application head is connected at the center of the stressed sliding table, the vertical force application device is arranged on a cross beam of a portal frame, a base at the right side of the portal frame is arranged on the stand by a right side linear guiderail pair, and the left side of the portal frame is fixed on the base of the horizontal force application device. The test bed realizes controllable dynamic load of horizontal load and radial load of the guiderail slider, can more accurately and reliably evaluate the relationship between the properties and service life of the guiderail pair, thus providing reliable test basis for design and maintenance of the guiderail pair.

Description

technical field [0001] The invention relates to a load-controllable passive follow-up force-applying linear guide rail auxiliary test bench. Background technique [0002] Linear guide rail pair is a common guiding part of mechanical system, and it is widely used in various machinery and equipment. Its performance and life are mainly related to the lateral load and radial (perpendicular to the front of the guide rail) load of the guide rail slider. The performance and life of the guide rail pair can be evaluated by simulating the operating state of the guide rail pair under a specific load by the linear guide pair test device, which is conducive to establishing a reasonable and effective maintenance plan and saving a lot of maintenance costs. The existing linear guide rail pair test device, such as the patent application No. 201110321929.0 that the applicant has applied for "a reconfigurable lead screw pair, guide rail pair accelerated life electro-hydraulic servo test bench...

AI Technical Summary

Problems solved by technology

However, since the force application points of the lateral loading mechanism and the vertical loading mechanism are fixed, they do not move with the movement of the stressed slide table; while the force slide table is always in a moving state during the test, the fixed force application point and the four guide rail sliders The relative distance of the force slide table changes, so the load distributed to the four guide rail sliders by the force slide table is not constant, but affected by the relative distance and the slide speed of the force slide table, the change is complex and difficult to predict quantitatively

That is to say, the loads applied to the four rail sliders by the lateral loading mechanism and the vertical loading mechanism are inconvenient and accurate to control

Therefore, the test device cannot accurately and reliably evaluate the relationship between the load and the performance and life of the guide rail pair

Images