Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Design Method of Cam Contour

A design method and cam profile technology, applied in design optimization/simulation, geometric CAD, special data processing applications, etc., can solve problems such as poor cam motion characteristics, cam profile deviation, etc., to reduce errors, improve stress conditions, Avoid inaccurate effects

Active Publication Date: 2021-08-03
JIANGSU NIUPAI TEXTILE MACHINERY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem that the cam designed by the existing cam profile design method has poor motion characteristics and easily deviates from the actual cam profile

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Design Method of Cam Contour
  • A Design Method of Cam Contour
  • A Design Method of Cam Contour

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0065] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically conn...

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

PUM

No PUM Login to View More

Abstract

The present invention relates to the technical field of cams, in particular to a design method of a cam profile, comprising the following steps: (1) determining the motion law of the heald frame, establishing a general curve motion law equation, and selecting the characteristic factor T 1 =T 2 =0.1,T 3 =T 4 =0.5, T 5 =T 6 =0.9, get the corresponding parameter C i , B i 、A 1 and A 2 ; (2) Establish the function expression of the cam push and return section; (3) Draw the cam profile through Adams modeling. The present invention adopts the general curve movement law of the correction coefficient to reduce the maximum speed and maximum acceleration of the cam, and the speed, acceleration and jerk curves are smooth and continuous, have good kinematics characteristics, and achieve ideal design effects. The opening machine of textile machinery is a medium-high-speed medium-load mechanism, and the characteristic value V of the cam curve should be selected in the cam design. m 、A m and (AV) m Smaller curves to improve stress conditions are calculated when T 1 =T 2 =0.1,T 3 =T 4 =0.5, T 5 =T 6 =0.9, V m 、A m and (AV) m Obtaining the optimal value improves the scientific accuracy of cam design, reduces errors, and avoids the problems of low precision and poor dynamic characteristics of related products.

Description

technical field [0001] The invention relates to the technical field of cams, in particular to a method for designing a cam profile. Background technique [0002] At present, in the design of the cam structure of the shedding machine of textile machinery, it is necessary to use the Adams software to establish a virtual prototype model according to the motion diagram of the mechanism. First, select the appropriate function to design the motion law of the heald frame. The motion laws usually selected include: 3-4-5 order polynomial displacement, harmonic displacement (cosine acceleration), cycloid displacement (sine acceleration), trapezoidal acceleration, equal jerk motion law, improved trapezoidal acceleration, improved sine acceleration, 4-5-6-7th order polynomial displacement and high degree polynomial displacement curve, etc. However, the above motion rules cannot meet the design requirements. The maximum speed and maximum acceleration of the cam designed by the traditio...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/20G06F111/10
CPCG06F30/17G06F30/20
Inventor 郭卫东邹庆晓刘群信韩正海
Owner JIANGSU NIUPAI TEXTILE MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products