Rapid optimization design and evaluation method for cam five-connecting-rod mechanism

An optimized design, five-link technology, applied in design optimization/simulation, instrument, geometric CAD, etc., can solve problems such as time-consuming, cumbersome design process, and inability to know the design method, so as to reduce the difficulty of development, avoid repeated calculations, The effect of speeding up your design

Pending Publication Date: 2021-07-23
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The connecting rod cam combination variable speed and horizontal device has a wide range of applications. To meet the production needs of different manufacturers, it is necessary to redesign the device according to the specific situation. The design process is cumbersome and time-consuming, and cannot be quickly designed.
[0005] 2. The size and shape of the connecting rod-cam combination variable speed and transverse device designed for specific situations can also be quite different. Which design is the best? The traditional design method cannot know, that is, the optimal design cannot be realized.
[0006] 3. Without motion precision analysis, the reliability of the mechanism cannot be known

Method used

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  • Rapid optimization design and evaluation method for cam five-connecting-rod mechanism
  • Rapid optimization design and evaluation method for cam five-connecting-rod mechanism
  • Rapid optimization design and evaluation method for cam five-connecting-rod mechanism

Examples

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Effect test

Embodiment 1

[0068] refer to Figure 1 to Figure 9 , a method for fast optimal design and evaluation of a cam five-bar linkage mechanism, comprising the following steps:

[0069]Step1: degree of freedom analysis, the degree of freedom of analyzing the cam five-bar linkage mechanism is 2;

[0070] Step2: Determine the velocity curve of the output member;

[0071] Step3: Carry out mathematical modeling to cam five-bar linkage mechanism, determine the mathematical model of cam five-bar linkage mechanism;

[0072] Step4: Determine the input speed of a bar;

[0073] Step5: solve;

[0074] Step6: optimal design;

[0075] Step7: Motion accuracy reliability analysis.

[0076] Among them, in Step3, the rod lengths of the cam five-bar linkage mechanism are determined to be l 1 , l 2 , l 3 , l 4 , l 5 ;

[0077] The end points of the cam five-bar linkage mechanism are A, B, C, D, E respectively;

[0078] The angle between AB and the x-axis is θ 1 , The angle between BC and the x-axis is ...

Embodiment 2

[0116] The difference with Example 1 is:

[0117] refer to Figure 1 to Figure 9 , a method for fast optimal design and evaluation of a cam five-bar linkage mechanism, comprising the following steps:

[0118] Step1: degree of freedom analysis, the degree of freedom of analyzing the cam five-bar linkage mechanism is 2;

[0119] Step2: Determine the velocity curve of the output member;

[0120] Step3: Carry out mathematical modeling to cam five-bar linkage mechanism, determine the mathematical model of cam five-bar linkage mechanism;

[0121] Step4: Determine the input speed of a bar;

[0122] Step5: solve;

[0123] Step6: optimal design;

[0124] Step7: Motion accuracy reliability analysis.

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Abstract

The invention discloses a rapid optimization design and evaluation method for a cam five-connecting-rod mechanism, and the key points of the technical scheme are that the method comprises the following steps: 1, analyzing the degree of freedom: analyzing the degree of freedom of the cam five-connecting-rod mechanism to be 2; 2, determining a speed curve of an output component; 3, performing mathematical modeling on the cam five-connecting-rod mechanism, and determining a mathematical model of the cam five-connecting-rod mechanism; 4, determining the input speed of one rod is determined; 5, carrying out the solving; 6, carrying out optimal design; 7, carrying out the motion precision reliability analysis. According to the rapid optimization design and evaluation method for the cam five-connecting-rod mechanism, rapid design can be achieved, repeated calculation is avoided for speed requirements of different manufacturers, and the design speed is increased; according to the rapid optimization design and evaluation method for the cam five-connecting-rod mechanism, optimization design can be achieved, and automatic searching of an optimal mechanism is achieved within a certain range; according to the rapid optimization design and evaluation method for the cam five-connecting-rod mechanism, the reliability of the device is analyzed, and the design reliability is improved.

Description

technical field [0001] The invention relates to the field of robot motion control, in particular to a fast optimization design and evaluation method of a five-cam linkage mechanism. Background technique [0002] As the core component of the diaper production line, the connecting rod cam combination variable speed and horizontal device is widely used by major manufacturers in their own production lines. Chinese patent document CN00803255.6 provides a method for realizing the variable speed and horizontal device. Speed ​​change and angle change on two different production lines. Among them, the transformation of the speed is realized by the cam five-link mechanism, which has a great influence on the overall performance of the device; the transformation of the angle is realized by the crank stick and the cam. [0003] Defect and deficiency of prior art: [0004] 1. The connecting rod cam combination variable speed and horizontal device has a wide range of applications. To mee...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/20G06F119/02
CPCG06F30/17G06F30/20G06F2119/02Y02T90/00
Inventor 王勇翁明浩袁海林刘建辉莫正虎周际戚旭利鲁兵
Owner HEFEI UNIV OF TECH
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