A data modeling method for headlight switch knob track

Abstract

The invention provides a headlight switch knob track data modeling method, which includes obtaining the torque curve of the headlight switch knob track; determining the structural parameters according to the design requirements of the torque or load, and constructing it through the relationship between geometry and force according to the structural parameters The climbing torque formula and the downhill torque formula are obtained, and the torque curve is further divided into a plurality of climbing straight lines and / or downhill straight lines connected in sequence, so that the slopes of the climbing straight line and the downhill straight line can be converted by cylindrical coordinates The corresponding relationship between the height and the angle increment is formed; determine the starting point and its corresponding return angle, correction angle and height, and according to the preset angle increment, use the climbing and downhill torque formula to calculate each The height of the climbing straight line and / or the downhill straight line; fitting the heights calculated in sequence to draw a three-dimensional target track curve and draw the curve. The implementation of the present invention solves the problem of low efficiency in the track modeling of the headlight switch knob in the prior art.

Description

technical field [0001] The invention relates to the technical field of machinery industry, in particular to a method for modeling track data of a headlight switch knob. Background technique [0002] During the design process, mechanical parts need to be solidly modeled for strength analysis and structural optimization design. In addition, they can also be used for assembly analysis and CNC machining. [0003] In the prior art, the design of the headlight switch knob track has the following disadvantages: (1) The design of the track surface is too simplified, and the spring design process is only related to two points of load, resulting in only two points of the entire track being close to the target value, which cannot be guaranteed The torque changes during the process, and the torque growth slope cannot be controlled to ensure the return; (2) There is a problem with the height distribution. The premise of determining the ratio according to the area is that the height growt...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a headlight switch knob track data modeling method to solve the problem of low efficiency in headlight switch knob track modeling in the prior art

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