A Rapid Cam Design and Manufacturing System and its Verification

2011 ◽  
Vol 320 ◽  
pp. 185-190
Author(s):  
Liu Han ◽  
Ping He
Keyword(s):  
Manufacturing System ◽  
Three Dimensional ◽  
Simulation System ◽  
Radius Of Curvature ◽  
Pressure Angle ◽  
Cam Design ◽  
Nc Program ◽  
Nc Simulation ◽  
Design And Manufacturing ◽  
Cam Profile

A rapid cam design and manufacturing simulation system is developed. The system consists of some modules which can be easily extended or updated. In the design module, the profile of disc cam is generated by defining some parameters – rise allowable pressure angle, return allowable pressure angle, the radius of curvature of cam profile etc. And the kinematics analysis of cam is also calculated in this module. Then the profile is transferred into Catia for generating a three dimensional geometry of the cam, and NC program is generated. Last, the NC program is verified by Yulong NC simulation system.

An Efficient Virtual Cam Design and Manufacturing System for Education

2011 ◽  
Vol 127 ◽  
pp. 406-411
Author(s):  
Liu Han ◽  
Ping He
Keyword(s):  
Manufacturing System ◽  
Three Dimensional ◽  
Simulation System ◽  
Radius Of Curvature ◽  
Pressure Angle ◽  
Cam Design ◽  
Nc Program ◽  
Nc Simulation ◽  
Design And Manufacturing ◽  
Cam Profile

A cam design and manufacturing simulation system is developed for education. The system consists of some modules which can be easily extended or updated. In the design module, the profile of disc cam is generated by defining some parameters – rise allowable pressure angle; return allowable pressure angle, the radius of curvature of cam profile etc. And the kinematics analysis of cam is also calculated in this module. Then the profile is transferred into CATIA for generating a three dimensional geometry of the cam, and NC program is generated. Last, the NC program is verified by Yulong NC simulation system.

Analytical Design of Disk Cams and Three-Dimensional Cams by Independent Position Equations

1959 ◽  
Vol 26 (1) ◽  
pp. 18-24
Author(s):  
Francis H. Raven
Keyword(s):  
Three Dimensional ◽  
Radius Of Curvature ◽  
Design Problems ◽  
Analytical Design ◽  
Pressure Angle ◽  
Cam Design ◽  
Design Charts ◽  
Cam Systems

Abstract This paper presents a method for the analytical design of cams, based upon independent position equations. From these equations, one can obtain general expressions for cam parameters such as the cam contour, pressure angle, radius of curvature, etc. This procedure is applicable for cam systems with any type of follower motion. The mathematical directness of this method makes it possible to investigate thoroughly even the most complicated cam situations, e.g., three-dimensional cams. Also, it is shown how design charts and procedures may be developed to facilitate the solution of particular cam design problems.

Application of Parallel Indexing Cam Design Software Platform in Intermittent Mechanism Designing of Die-Cutting Machine

2010 ◽  
Vol 174 ◽  
pp. 303-306 ◽  
Author(s):  
Xiang Dong Shi ◽  
Shao Hua Shen ◽  
Cheng Wen Chai
Keyword(s):  
Small Radius ◽  
Radius Of Curvature ◽  
Software Platform ◽  
Design Quality ◽  
Excessive Pressure ◽  
Improve Design ◽  
Cam Mechanism ◽  
Cam Design ◽  
Cutting Machine ◽  
Cam Profile

The formation of parallel indexing cam profile was described in detail with the calculation of the cam profile data. With VB as the software platform, the parallel indexing cam contour was calculated, the contour mapping was also displayed, and the data was saved as required format. Then a three-dimensional entity of the parallel indexing cam mechanism is drawn up directly in SolidWorks in order to perform the 3D parameterization design and motion emulation of the parallel indexing cam mechanism. This can help designers to find the problems, such as the rotation difficulties caused by excessive pressure angle, the motion distortion caused by small radius of curvature. So the designer can make modification in time to improve design quality and shorten the product development cycles. The software platform can select type of the interval splitter by calculating and selecting the power motor according to the input drive shaft angle and the output shaft such shares. The system could perform the transmission of information and share the information between subsystems, enhancing the degree of integration and automation of parallel indexing cam design and manufacture. A good software platform was developed for parallel indexing cam mechanism’s design, manufacturing and performance studying. Finally, the example of interval paper-feed mechanism in an automatic die-cutting machine was verified the usability and effectiveness of the software platform.

Analytical Design of Cam-Type Angular-Motion Compensators

1977 ◽  
Vol 99 (2) ◽  
pp. 381-386 ◽  
Author(s):  
S. G. Dhande ◽  
G. N. Sandor
Keyword(s):  
Principal Curvature ◽  
Three Dimensional ◽  
Angular Motion ◽  
Maximum Pressure ◽  
Exact Equation ◽  
Unified Approach ◽  
Analytical Design ◽  
Pressure Angle ◽  
Cam Profile ◽  
Different Dimensions

In this paper, a unified approach is presented for the analytical design of cams used in various angular-motion compensators. These mechanisms can be classified as cam-modulated linkages. For a predetermined phase control between the two coupled shafts of the compensator, using this method one can find the exact equation of the cam profile, its principal curvature at the point of contact, expressions for the pressure angle and the transmission angles, and the condition for maximum pressure angle as well as the cutter wheel positions for generating the cam profile on an appropriate machine tool. The equations developed can be used effectively for analyzing the mechanical error due to tolerances on different dimensions of this cam-modulated linkage. The analysis of three-dimensional cam-type angular-motion compensators is also included.

Application of Conjugate Cam Design Software Platform in Die Cutting Platen Press Mechanism

2011 ◽  
Vol 127 ◽  
pp. 207-213
Author(s):  
Xiang Dong Shi ◽  
Shao Hua Shen ◽  
Cheng Wen Chai
Keyword(s):  
Small Radius ◽  
Radius Of Curvature ◽  
Curvature Radius ◽  
Software Platform ◽  
Excessive Pressure ◽  
Pressure Angle ◽  
Cam Design ◽  
Design Software ◽  
And Performance ◽  
Design And Manufacture

The design of the conjugate cams was analyzed in this paper, and the calculation process of conjugate cams profile data to meet the pressure angle and the curvature radius was introduced in detail. With VB as the software platform, the curves data of the conjugate cams were designed and calculated, the curves were also displayed on the platform. Base on the designing platform, the motion parameter of the followers, such as displacement, velocity and acceleration, could be achieved and saved in the certain format. The parameterization design and motion analysis were also could be performed to help the designer to find the mistakes, such as the rotation difficulty caused by excessive pressure angle, the motion distortion and overcut during machining caused by small radius of curvature. So the mistakes could be corrected and the product developing cycle could be shortened. The system could accomplish the information transmission and information sharing among the subsystems and enhanced the integration and automation of the conjugate cam design and manufacture. It also could be taken as platform for designing, manufacturing and performance researching of the conjugate cams. Finally, the example of the moving platform die-cutting mechanism in an automatic die-cutting machine verified the usability and effectiveness of the software platform.

Feature-Based Gearbox Design

1997 ◽  
Author(s):  
Ari Heikkinen ◽  
Tapio Korpela ◽  
Tatu Leinonen
Keyword(s):  
Manufacturing System ◽  
Three Dimensional ◽  
Gear Train ◽  
Dimensional System ◽  
Functional Requirements ◽  
Housing Design ◽  
Cad System ◽  
Design And Manufacturing ◽  
Feature Based ◽  
Gear Wheels

Abstract The Laboratory of Machine Design of the University of Oulu has defined and implemented a design and manufacturing system for a gear manufacturer in co-operation with the company’s own staff. The parts of gear train, such as shafts and gear wheels, are designed by an application program included in a two-dimensional system and the gear housing is designed by a commercial three-dimensional feature-based system. A shaft design and manufacturing system has been discussed in previous papers produced in connection with this project (Korpela, T., et al. 1995, Heikkinen, A., et al. 1996). The tool used for gear housing design and manufacturing have been tested during the past year, and experiences with this CAD system are recounted here. It has been found that the design features which implement the functional requirements of gear construction are different from the features which support the manufacturing processes.

Design and machining of cylindrical cam with meshing indexing disc

2007 ◽  
Vol 221 (3) ◽  
pp. 341-351 ◽  
Author(s):  
J Hsieh
Keyword(s):  
Kinematic Model ◽  
Cnc Machine ◽  
Cam Design ◽  
Comprehensive Method ◽  
Design And Manufacturing ◽  
Machine Elements ◽  
Cam Profile ◽  
Profile Design ◽  
Cost Efficient ◽  
Nc Data

Cams are fundamentally important machine elements, which provide a simple means of generating virtually any follower motion. This paper presents a simple yet comprehensive method for the design and machining of a cylindrical cam with a meshing indexing disc. In the proposed methodology, homogenous coordinate transformation and conjugate surface theory are employed to develop a kinematic model for the cam profile design. The pressure angle and the principal curvature of the designed cam are analysed using the analytical expression derived for the profile. The required NC data equations are obtained by solving the CNC link variables by equating the machine tool ability function with the tool location matrix. The proposed methodology is verified by machining the designed cylindrical cam using a 4-axis CNC machine. The inspection results obtained from a 4-axis CMM show that the profile measurements of the machining cam are in excellent agreement with those of the designed profile. The results confirm that the methodology presented in this study enables the cam design and manufacturing tasks to be successfully integrated. As a result, the production process is flexible, automatic, cost efficient, and controllable.

A Unified Approach to the Analytical Design of Three-Dimensional Cam Mechanisms

1975 ◽  
Vol 97 (1) ◽  
pp. 327-333 ◽  
Author(s):  
S. G. Dhande ◽  
B. S. Bhadoria ◽  
J. Chakraborty
Keyword(s):  
Three Dimensional ◽  
Grinding Wheel ◽  
Two Dimensional ◽  
Unified Approach ◽  
Analytical Design ◽  
Pressure Angle ◽  
Cam Follower ◽  
Cam Profile

The paper presents a unified approach for the analytical design of three-dimensional cam follower systems. Generalized expressions for various cam parameters, such as the equation of the conjugate cam profile, the pressure angle at the point of contact and locations of the cutter and the grinding wheel axes are derived. The effectiveness of the proposed method is illustrated by applying it to camoids, three-dimensional cylindrical cams with translating and oscillating followers, globoidal cams with oscillating followers and two-dimensional disk cams with translating and oscillating roller followers.

Case Studies on the Use of Virtual Reality for an Integrated Design and Manufacturing System

1997 ◽  
Author(s):  
Scott Angster ◽  
Sankar Jayaram ◽  
David Hutton
Keyword(s):  
Virtual Reality ◽  
Computer Aided Design ◽  
Manufacturing System ◽  
Virtual Prototyping ◽  
Three Dimensional ◽  
Integrated Design ◽  
Human Interaction ◽  
Loop Analysis ◽  
Human In The Loop ◽  
Design And Manufacturing

Abstract Companies are being forced to create products at a highly accelerated rate and have turned to new design techniques such as virtual prototyping. One of the newest virtual prototyping tools is the use of virtual reality for design and manufacturing analysis. Many groups have developed systems that use virtual reality techniques such as virtual fly-throughs, simulations and three-dimensional visualization. Additionally, there is an increased amount of research in the area of human-integrated techniques or human-in-the-loop analysis using virtual reality. In the field of design and manufacturing, most work has either been in simulation or in the field of human interaction without the use of virtual reality. Although these provide valuable information, a system that couples human-interaction with virtual reality can provide more information than that provided by current computer-aided design and manufacturing software. One concern, however, is the accuracy of these systems and whether the data that is obtained from these systems can be utilized. This paper presents studies performed in a virtual environment for a design and manufacturing system.

Design and Manufacturing of Complex Surface Impeller Based on RE

2011 ◽  
Vol 328-330 ◽  
pp. 619-623
Author(s):  
Zhi Yang Li ◽  
Ming Yu Huang ◽  
Hong Ju Hu ◽  
Hong Jun Ni ◽  
Yu Zhu ◽  
...  
Keyword(s):  
Reverse Engineering ◽  
Three Dimensional ◽  
Complex Surface ◽  
Fixture Design ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Basic Principles ◽  
Nc Simulation ◽  
Design And Manufacturing ◽  
Manufacturing Problems

Based on the instance of collection the data of complex surface impeller and reconstruction the three-dimensional model, it describes the concepts and basic principles of Reverse Engineering, and discusses the entire process in detail, which are from the data of impeller collected, the impeller three-dimensional model re-Construction, fixture design to NC simulation machining. Solved the design and manufacturing problems of complex surface parts, which can not be solved by the conventional methods.

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