Tool rest design method and system for rapid tool servo system and medium
A servo system and design method technology, applied in general control systems, control/regulation systems, manufacturing tools, etc., can solve problems such as objective facts that do not conform to high-frequency reciprocating motion structures, improve surface tracking capabilities, and maintain linearity. , the effect of high linearity
Active Publication Date: 2019-10-18
NAT UNIV OF DEFENSE TECH
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[0004] At present, the tool holder design of fast servo tools is usually based on the theory of elastic mechanics to optimize the structural parameters of the tool holder. When establishing a mathematical model, the structure will be assumed or simplified, and there is a certain deviation between the theoretical value and the actual value of the tool holder stiffness; consider In terms of fatigue strength, only static stress is checked, which does not conform to the objective facts of high-frequency reciprocating motion structures
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[0037] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0038] Such as figure 1 As shown, the implementation steps of the tool holder design method for the fast tool servo system in this embodiment include:
[0039] 1) According to the performance requirements of the fast tool servo system, the structural form, design parameters and material properties of the tool holder are determined, and the optimization target range of the dynamic and static performance of the tool holder is given;
[0040] 2) Establish the finite element model of the tool holder and analyze it to obtain the dynamic and static performance of the tool holder under different design parameters;
[0041] 3) Establish a mathematical model of the fatigue reliability of the flexible tool holder and solve it in combination with finite anal...
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The invention discloses a tool rest design method and system for a rapid tool servo system and a medium, and the method comprises the steps: determining a structural form, design parameters and material attributes of a tool rest according to the performance requirements of the rapid tool servo system, and giving an optimization target range of the dynamic and static performances of the tool rest;establishing a tool rest finite element model and analyzing to obtain the dynamic and static performances of the tool rest under different design parameters; establishing a flexible tool rest fatiguereliability mathematical model and combining with finite analysis for solving same to obtain a relation curve of the tool rest fatigue reliability and each design parameter; and determining the designparameters of the tool rest according to the dynamic and static performances of the tool rest under different design parameters and the relation curve of the tool rest fatigue reliability and each design parameter. The finite element analysis method is combined to analyze the tool rest fatigue reliability, and the designed tool rest structure is high in precision and more reliable in service life.
Description
technical field [0001] The invention relates to a flexible tool holder structure design for a fast tool servo system, in particular to a tool holder design method, system and medium for a fast tool servo system. Background technique [0002] Fast tool servo machining technology is a new type of complex surface machining technology. It controls the tool to do high-response, high-precision reciprocating motion, which matches the movement of the servo axis of the machine tool, and realizes the processing of non-rotational symmetry or complex surface parts. Ultra-precision machining. The development of fast tool servo technology provides a new, efficient, economical and reliable way for target parts processing. [0003] At present, the relatively mature fast tool servo system generally uses piezoelectric ceramics as the driving element. The tool is installed on the tool holder formed by the flexible tool holder as the actuator, and the tool holder is driven by the piezoelectric...
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IPC IPC(8): G05B19/408B23B21/00
CPCB23Q3/00G05B19/4086G05B2219/35356
Inventor 戴一帆关朝亮刘俊峰铁贵鹏彭小强石峰
Owner NAT UNIV OF DEFENSE TECH