Static stiffness test device of modularized cutter handle combining part

Abstract

The invention provides a static stiffness test device of a modularized cutter handle combining part, which comprises a square box, a cutter handle combining part, an axial and radial loading device and an axial displacement and radial displacement measuring device, wherein the square box is used for fixing the test device, the cutter handle combining part consists of a simulation main shaft head and a cutter handle, the radial displacement measurement adopts two sets of displacement sensors, and the radial displacement and the angle displacement of the cutter handle combining part can be separated, so the radial stiffness and angle stiffness test of the cutter handle combining part can be realized. The modularized structural design is adopted, the static stiffness test of the cutter handle combining parts in different dimension series can be realized, and at the same time, the axial stiffness test, the radial stiffness test and the angle stiffness test can be carried out. The device has the advantages of simple structure, multifunction and wide application range, the real stiffness value of the cutter handle combining part can be obtained, and the invention has important significance to the study on the cutter handle static performance and the determination of the reasonable cutter handle tensioning force.

Description

technical field [0001] The invention belongs to the technical field of mechanical design and manufacture, and in particular relates to a static stiffness test device for a joint of a modular knife handle. Background technique [0002] The tool holder is the main component connecting the tool and the spindle of the machine tool. The contact stiffness of the joint surface between the tool holder and the inner taper hole of the spindle (also called the stiffness of the tool holder joint) directly affects the processing quality and efficiency of the machine tool. Since the rigidity of the handle itself has been determined (size, shape, material, etc. have been determined), for the actual use of the handle, the stiffness of the joint of the handle is variable (with the axial tension of the handle, the taper of the handle It is related to the contact rate and contact state of the inner taper hole of the spindle), so the change law of the stiffness of the joint of the tool holder u...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a static stiffness test device for the joint of a modular knife handle, to overcome the fact that there is no test device specifically for the static stiffness of the joint of the knife handle in the prior art, and it is impossible to test the joint of the knife handle under different tension states Stiffness Variation Law

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