High-frequency cutting force dynamic simulation loading device
A dynamic simulation and loading device technology, applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve the problems that it is difficult to replace the cutting test and the cutting force effect is poor, so as to achieve good simulation and improve reliability
Active Publication Date: 2022-03-18
TSINGHUA UNIV
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Problems solved by technology
However, the cutting force loading device in the related art is poor in simulating the cutting force, and it is difficult to replace the real cutting test
Method used
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Embodiment Construction
[0021] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0022] Such as Figure 1-Figure 3 As mentioned above, the high-frequency cutting force dynamic simulation loading device according to the embodiment of the present invention includes a main shaft connection tool handle 1, five branch chains, a mounting plate 8 and an electric control cabinet 9. It should be noted that the high-frequency cutting force dynamic simulation loading device of this application can replace the real cutting test, and compared with the fixed-point static loading of the transmission equipment, the force of the dynamic simulation loading is closer to the spindle connected to the handle in the actual cutting operation. time stress state.
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The invention discloses a high-frequency cutting force dynamic simulation loading device, the high-frequency cutting force dynamic simulation loading device comprises a main shaft connecting knife handle, five branch chains, a mounting plate and an electric control cabinet, the main shaft connecting knife handle is connected with a main shaft of a numerical control machine tool, and the lower end of the main shaft connecting knife handle is provided with a connecting flange; the mounting plate is connected with a workbench of the numerical control machine tool, the five branch chains are arranged at intervals in the circumferential direction of the connecting flange and connected between the connecting flange and the mounting plate, each branch chain comprises an upper connecting piece, piezoelectric ceramics, an electric cylinder and a lower connecting piece which are sequentially connected in the direction away from the connecting flange, and the electric control cabinet is connected with the electric cylinder and the piezoelectric ceramics. The electric control cabinet can control the electric cylinder to press the connecting flange towards the main shaft connecting cutter handle, and the piezoelectric ceramics can receive and convert electric signals of the electric control cabinet into high-frequency force signals to simulate high-frequency cutting force. The high-frequency cutting force dynamic simulation loading device can realize high-frequency variable force loading on the main shaft of the numerical control machine tool, and a real cutting test is replaced.
Description
technical field [0001] The invention relates to the technical field of reliability testing of numerical control machine tools, in particular to a dynamic simulation loading device for high-frequency cutting force. Background technique [0002] CNC machine tool is a complex electromechanical hydraulic system, and its reliability is one of its important performances, which has attracted extensive attention from academia and user companies. The early failure test can run the machine tool well, expose the weak point of the machine tool, and improve the reliability of the machine tool. However, the early failure test is carried out by cutting, which wastes the cutting material and the test cost is high. The cutting force simulation loading device is a good substitute for cutting tests, which can apply a certain force to the machine tool to simulate the force condition of the machine tool in real machining. However, the cutting force loading device in the related art is poor in ...
Claims
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IPC IPC(8): G01M99/00
CPCG01M99/005
Inventor 吴军王立平朱斌
Owner TSINGHUA UNIV