Control device of small impact test bed and control method thereof

Abstract

The invention discloses a control method of a small impact test bed. A control module monitors whether a table top lifting device is at a zero position through a lower limiting sensor; if the test bench is at the zero position, the bench surface of the test bench is suspended on the bench surface lifting device through the bench surface suspension release device; controlling the tabletop lifting device to move upwards, and monitoring whether the tabletop lifting device reaches a target height or not in real time; if the target height is reached, the tabletop suspension release device is controlled to release, so that the tabletop performs free falling motion, and impact is completed. The control device comprises a control module, a table top lifting device, a table top hanging and releasing device, an upper limiting sensor, a lower limiting sensor and a human-computer interface. The method is convenient and accurate to operate and can meet diversified requirements of customers. A human-computer interface and a control module are adopted for control, the impact height and the impact frequency of the impact test bed are controlled by controlling the table top lifting device, and thefunctions of single impact, repeated impact, counting, automatic reset, over-displacement protection and fault recording are achieved.

Description

Technical field [0001] The invention relates to the technical field of impact testing, in particular to a control device of a small impact test bench and a control method thereof. Background technique [0002] With the rapid development of science and technology in our country, users have put forward higher requirements for the quality and reliability of electronic components, instrumentation and electromechanical products. For this reason, the State Administration of Standards issued the "Basic Environmental Test Regulations for Electrical and Electronic Products" (GB2423) in 1981, which set strict regulations on the impact test methods of products, and the demand and requirements of users for impact test benches have gradually increased. . [0003] The small impact test bench adopts the classical mechanics free fall structure to simulate the actual use environment and is accurate and realistic. It is applied to the impact resistance test of specimens in the fields of aviation, a...

AI Technical Summary

Problems solved by technology

[0004] The original controller of small impact test bench is operated by button switch, logic judgment and control are completed through contactors and relays, and the rise and fall of the surface is controlled by controlling the action of AC motor. The height of rise can only be determined by manual visual inspection. sure, very inconvenient

Images