Ball screw performance detection method, device and system

Abstract

The invention discloses a ball screw performance detection method. The method comprises steps: screw operation parameters are transmitted to a driving motor, wherein the screw operation parameters comprise a load parameter; a driving device drives the ball screw to push a controllable load device to operate at the screw operation parameters, and the controllable load device provides a load force for the ball screw according to the load parameter; a data acquisition device acquires the maximum pressure borne in the case of operation of the ball screw; whether the maximum pressure achieves a standard pressure is judged; if not, the screw operation parameter is added, and acquisition is carried out again until to reach the standard pressure; and if yes, according to the state information after the ball screw operates at the screw operation parameters corresponding to the standard pressure for preset times, a performance index is judged. The method is applicable to multiple specificationsof ball screws, the load force can be controlled according to an actual condition in the case of operation, the stroke is unrestricted, and the detection efficiency is improved. The ball screw performance detection device, the system and a computer readable storage medium all have the above beneficial effects.

Description

Technical field [0001] This application relates to the field of performance testing, in particular to a performance testing method of a ball screw, and also to a performance testing device, system and computer readable storage medium of a ball screw. Background technique [0002] CNC machine tools have the characteristics of high machining accuracy, high degree of automation, easy operation and use, etc., and are widely used in the processing of various precision, complex and special mechanical parts. Among them, the ball screw is the key part of the machine tool for power transmission and positioning. It is mainly composed of a screw rod and a nut. The degradation of its performance will greatly affect the operating accuracy of the machine tool, thereby affecting the production quality of the product and reducing the utilization rate of the equipment. Bring huge losses. [0003] At this stage, one of the methods for testing the life of the ball screw is to use a spring to connect...

AI Technical Summary

Problems solved by technology

Among them, the ball screw is the key part of machine tool transmission power and positioning. It is mainly composed of screw and nut. The degradation of its performance will greatly affect the running accuracy of the machine tool, thereby affecting the production quality of the product and reducing the utilization rate of the equipment. bring huge losses

[0003] In the current method of testing the life of the ball screw, one is to use a spring to connect the ball screw to provide load force and realize the linear operation of the ball screw. However, the spring provides It is not a constant force, which will bring some inaccuracy to the test results of the ball screw; at the same time, when the spring realizes a two-way large load, its elongation or shortening is very limited, generally no more than 500mm, In this way, it is almost impossible to test the screw with a stroke of more than 1 meter

The other is to rely on the traditional weight loading method. The size of the load is determined by the weight of the configured weight. The movement of the entire load is driven by a motor to drive the ball screw, and the ball screw pushes the load placement area, thus providing The system provides load power, however, the load generated by this weight loading method is only a static load, and when the load is large, it is necessary to configure many weights or a very heavy weight in the load placement area, which leads to the test The device would be too bulky and, moreover, the handling process would be extremely inconvenient since the loading of the heavy objects would be done manually

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