Analysis method and device of geometric tolerance influencing control precision of track of machine tool

A technology of geometric tolerance and trajectory control, applied in the field of virtual design, can solve the problems of comprehensive analysis of geometric tolerance and trajectory control accuracy of machine tools, and achieve the effects of shortening design time, saving design cost, and good versatility

Active Publication Date: 2010-05-26
HANS CNC SCI & TECH
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Problems solved by technology

[0003] In the traditional technology, the tolerance analysis usually adopts the method of calculating the dimension chain, and statically analyzes the influence of the shape, position and position errors on the dimension chain generated by the machining or assembly of machine tool parts, but cannot comprehensively analyze the shape from a dynamic perspective. Influence of Bit Tolerance on Controlling Accuracy of Machine Tool Trajectory

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  • Analysis method and device of geometric tolerance influencing control precision of track of machine tool
  • Analysis method and device of geometric tolerance influencing control precision of track of machine tool
  • Analysis method and device of geometric tolerance influencing control precision of track of machine tool

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Embodiment Construction

[0023] The recommended embodiments of the geometrical tolerance analysis method and device that affect the trajectory control accuracy of the machine tool provided by the present invention are described below.

[0024] refer to figure 1 , the present invention affects the shape and position tolerance analysis method embodiment of the trajectory control accuracy of the machine tool comprising:

[0025] A1. In the dynamic model of the machine tool, set the geometric and position tolerances for the key components to be analyzed.

[0026] Shape and position tolerance has the characteristics of adjustable tolerance value and change of tolerance zone direction. In the embodiment of the present invention, it is possible to analyze different shape and position tolerances (such as straightness, non-parallelism, coaxiality, flatness, etc.) on different parts on the machine tool according to actual working conditions, and all shape and position tolerances A geometric tolerance group ca...

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Abstract

The invention relates to the technical field of virtual design, in particular disclosing an analysis method and a device of geometric tolerance influencing the control precision of the track of a machine tool. The method comprises the following steps: setting geometric tolerance to be analyzed for key parts in a dynamic model of the machine tool; using the driving moment of the machine tool as an input signal to generate the dynamic model of the machine tool after being added with the geometric tolerance, and then, generating a corresponding mathematical model through the dynamic model; and calling a corresponding solver to solve the mathematical model to acquire the deviation of the motion track of the machine tool caused by the geometric tolerance. The embodiment of the invention can analyze the influence of the geometric tolerance of each part on the dynamic performance of the machine tool.

Description

technical field [0001] The invention relates to the technical field of virtual design, in particular to a shape and position tolerance analysis method and device that affect the trajectory control accuracy of a machine tool. Background technique [0002] Machine tool control design can generally be divided into trajectory control design and sequence control design. In trajectory control design, the accuracy of trajectory control is very important, and the shape and position tolerance will have an important impact on the accuracy of trajectory control. The shape and position tolerance Analysis is a critical and difficult part of machine tool design. [0003] In the traditional technology, the tolerance analysis usually adopts the method of calculating the dimension chain, and statically analyzes the impact of the shape, position and position errors on the dimension chain generated by the machining or assembly of machine tool parts, but cannot comprehensively analyze the shape...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00
Inventor 高云峰肖俊君宋福民
Owner HANS CNC SCI & TECH
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