Cam Curve Design Method Based on k-order Harmonic Function

A cam curve and harmonic function technology, applied in design optimization/simulation, computer-aided design, calculation, etc., can solve the problems of mechanism fluctuation, not suitable for high-speed occasions, etc., to achieve small acceleration fluctuation, improve mechanism operation efficiency, and Smoothing effect
CN108629067BActive Publication Date: 2021-11-16JIANGNAN UNIV
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2021-11-16

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a cam curve design method based on a k-order harmonic function, which belongs to the technical field of cam design. The invention aims to solve the problem that the existing harmonic cam curve is unsuitable for high-speed occasions due to mechanism fluctuations caused by some characteristic parameter curves approaching infinity at the endpoints. It includes: obtaining the key point data determined by the cam to realize the function; dimensionless the key point data to obtain the dimensionless time T and dimensionless displacement S; writing the cam curve fitting program to obtain the k-order harmonic function Add local control points to the first cam curve expression; after solving, deform to obtain the second cam curve expression, then combine the first two expressions to obtain the final cam curve expression, determine the order of k, and add local control points, An optimized cam profile is obtained. The invention is used in the design of cam curves.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a cam curve design method based on a k-order harmonic function, and belongs to the technical field of cam design. Background technique

[0002] The cam mechanism has multiple functions of transmission, guidance and control mechanisms, and is widely used in various automatic machines. When the cam mechanism is used as a transmission mechanism, various complex motion laws can be generated to realize various movements such as non-constant velocity, local constant velocity, temporary stop or stepping; when the cam mechanism and its combination mechanism are used as a guiding mechanism , can make the working mechanism produce complex motion trajectory; when the cam mechanism is used as the control mechanism, it can control the actuator to realize the automatic working cycle according to the predetermined requirements. The realization of these functions is inseparable from a stable and efficient cam mechanism. At present, there are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More