Tool assembly for improving universality of vibration test clamp and vibration test fixture

Abstract

In order to enable the test fixture to meet the universality requirement, the invention provides a tool assembly for improving the universality of a vibration test fixture and the vibration test fixture. The tool assembly comprises three tool units. The first tool unit comprises a plurality of first tools, the second tool unit comprises a plurality of second tools, and the third tool unit comprises a plurality of third tools. The first to third tools have the same structure and different sizes; each tool is provided with a countersunk through hole, and the external shape of each tool is matched with the internal shape of the maximum-specification countersunk hole of the vibration test fixture; according to the first tool size, d1 is larger than the diameter of an M8mm screw head and smaller than 25.5mm, d2 is larger than 8.0 mm and smaller than 17.0 mm, and d2 is larger than the height of the M8mm screw head and smaller than 17.0 mm; according to the size of the second tool, d1 is larger than the diameter of an M10mm screw head and smaller than 25.5mm, d2 is larger than 10.0 mm and smaller than 17.0 mm, and d2 is larger than the height of the M10mm screw head and smaller than 17.0mm; according to the size of the third tool, d1 is larger than the diameter of an M12mm screw head and smaller than 25.5mm, d2 is larger than 12.0 mm and smaller than 17.0 mm, and d2 is larger than the height of the M12mm screw head and smaller than 17.0 mm, wherein d1 is the inner diameter of a large hole of the countersunk through hole, d2 is the inner diameter of a small hole, and d3 is the height of the large hole.

Description

technical field [0001] The invention belongs to the technical field of vibration tests, and relates to a tool assembly for improving the versatility of a vibration test fixture, and a vibration test fixture using the tool assembly. Background technique [0002] Vibration test has become an important means of reliability verification of aerospace, aviation, ship and ground military and civilian equipment. It is mainly used to verify the adaptability of equipment and parts under expected or specified vibration conditions. Whether it can work normally and meet the requirements of use under vibration conditions. [0003] At present, the vibration test is mainly carried out on the electromagnetic vibration table. Its working principle is that a constant magnetic field interacts with a coil with a certain alternating current in the magnetic field, thereby generating a certain excitation force. When performing vibration tests on equipment, it is generally necessary to rigidly conn...

AI Technical Summary

Problems solved by technology

[0005] In different stages of the equipment development process, it is often necessary to conduct multiple vibration tests. As a relatively scarce resource, the vibration table cannot be coordinated with the vibration table with the same threaded hole diameter for each test, which requires the same equipment. Design and process two to three or more test fixtures with different counterbore diameters, which requires more manpower and material resources, which greatly increases the cost of equipment development, especially for aerospace equipment with a very tight development cycle. A test fixture often affects the development progress

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