REVERSE REALIZATION OF PITCH CURVE ON CONJUGATE CAM WITH HIGH SPEED BEATING-UP

QIU HaiFei

doi:10.16579/j.issn.1001.9669.2021.04.035

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REVERSE REALIZATION OF PITCH CURVE ON CONJUGATE CAM WITH HIGH SPEED BEATING-UP

更新时间：2022-09-22

- REVERSE REALIZATION OF PITCH CURVE ON CONJUGATE CAM WITH HIGH SPEED BEATING-UP
- Journal of Mechanical Strength Vol. 43, Issue 4, Pages: 1002-1006(2021)
- 作者机构：
  
  1. 西京学院机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.04.035
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QIU HaiFei. REVERSE REALIZATION OF PITCH CURVE ON CONJUGATE CAM WITH HIGH SPEED BEATING-UP. [J]. 43(4):1002-1006(2021)
DOI：

QIU HaiFei. REVERSE REALIZATION OF PITCH CURVE ON CONJUGATE CAM WITH HIGH SPEED BEATING-UP. [J]. 43(4):1002-1006(2021) DOI： 10.16579/j.issn.1001.9669.2021.04.035.

摘要

为适应共轭凸轮打纬工艺要求,采用一种修正梯形加速规律分段构建筘座运动方程。利用Matlab开发共轭凸轮反求设计程序,在重构筘座打纬运动规律基础之上,实现了主、副凸轮理论廓线的精确反求,并结合摆臂夹角Φ、中心距L分析了理论廓线形态变化。反求设计结果显示,理论廓线各点压力角α符合机构学传力特性要求。通过逐点计算理论廓线向径r0和曲率半径ρ0,确定了合理的基圆半径和滚子半径。为打纬共轭凸轮的结构反求和设计创新提供了技术思路。

Abstract

In order to meet the requirements of beating up technology on conjugate cam,a modified trapezoid acceleration law is used to construct motion equation of reed by segment. The reverse design program of conjugate cam is developed by MATLAB software,and precise reverse design of pitch curve on main and auxiliary cam are realized which on the basis of reconstructing law of beating-up motion. Besides,shape change of the pitch curve is analyzed by combining swing arm angle Φand center distance L. The results of reverse design show that pressure angle α at each point on the curve can meet requirements of mechanical transmission characteristics. The reasonable values of basic circle radius and roller are determined through calculating radial direction r0 and radius of curvature ρ0 of the curve point by point. The results provides a technical idea for reverse and design innovation of the conjugate cam on beating-up mechanism.

关键词

共轭凸轮反求设计打纬理论廓线压力角Matlab

Keywords

Conjugate camReverse designBeating-upPitch curvePressure angleMATLAB

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