INTRODUCTION TO MAIN PROJECTS (in China)
High Speed CNC Turning System for Pistons (PhD research project)
- The theory of high speed noncircular CNC machining
- Computer control hardware (Intel 8098), software, and interfaces
- Linear motor and its control system
- New control algorithms, such as Fuzzy PID, Fuzzy, Neural network control
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G-CNC Machine tool for piston turning, 1998 (Guangzhou Machine tool factory) |
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Economical CNC Piston Turning Machine, Using TH1--15 Linear Motor, 1995. |
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Economical CNC Piston Turning Machine, Using TH2--30 Linear Motor, 1996. |
- Repetitive Control Based Linear Servo Unit (PhD research project)
- Supported by National Science Foundation of China, From 1995 to 1998
- Design new kind of linear servo unit with large power, small size, high response frequency and long strike for previous project. The servo unit can also be used as a precision linear actuator.
- Research and design DSP based computer control system.
- Research on repetitive control, learning control and nonlinear learning control to increase servo system precision.
- PC-based CNC non-circular turning system
- Research on so called Extracted CNC System and used in previous project.
- My PhD dissertation is based on above two projects.
- CNC Self-copying Grinding & Polishing Machine
- Supported by Sic. and Tech. Committee of China, From 1994 to 1996
- The basic principle of self copying machining
- The integrated technology of polishing head and the 3-D sensors
- Intelligent polishing and control technology
- PC-based Open architecture CNC system
- Extracted CNC system
- CNC Drilling and Slotting Machine
- Supported by Chemical Industrial Committee of China From 1988 to 1990
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CNC Drilling machine is used for manufacturing the holes of heat exchanger component (See next image). Some component has more than 2500 holes on it.
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CNC Slotting machine is used for manufacturing the complicated surface of rotators( See next image). Both parts are difficult to manufacture by manual control.
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Research on 3-D economical CNC system for both, interfaces and related control software.
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Research on mechanical system and production processing and plan
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Computer control system .
- A Plate Component used for heat exchanger with many small holes on it. It is difficult to machine by a general drilling machine.
- Rotator Part used for a special chemical pump. Its surface is irregular. The best way to machine it is to use a CNC Slotting Machine. The Figure shows the section of the part.
- Intelligent Human-Like Robot and its Control System
- Supported by Henan Planning & Economic Committee, From 1993 to 1995
- This human-like robot was researched for Henan International Exhibition Center. The robot can identify limited languages and gives response, oral language or actions, to the instructions.
- Research on mechanical structure, sensor and language system
- Control algorithm and path programming
- Control and driving system.
- Economical CNC Tuning System
- Supported by Henan Planning & Economic Committee, From 1985 to 1986
- Research and manufacture economical 2-D CNC turning system for general lathe model C6116, C6120, C6130
- Research and develop new power driver for the stepping motor
- Design computer system(Z80 system), hardware and software, interface
- Mechanical system design
- Fully Automatic Tool Carrier
- Supported by Henan Planning & Economic Committee, From 1985 to 1987
- Research and manufacture automatic tool carrier with 4 to 8 tool positions for CNC turning system
- Mechanical structure design and driving design
- Research and manufacture precision positioning component and driving interface circuit
- Equipment for manufacturing the positioning component.
- Package Machine for Super Fine Powder
- Supported by Chemical Industrial Committee of China From 1990 to 1993
- Research and manufacture fully automatic package machine for super fine powder, typically for packaging agricultural chemicals.
- Computer control intelligent scaling system
- Mechanical driving structure and automatic system
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CNC Self-copying Machining is different from traditional CNC Copying Machining. When it is used for polishing, the head can self-tracked and the polishing force can be kept in constant. | ||
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The most important component for self-copying machining is the 'head'. The 'head' has the ability to measure three dimensional forces and polish at high speed. The polishing forces guide the head to move or to track. |
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The robot consists of 16 actuators and has the language ability. Prof. Li xingshen(left) is the director of the Mechatronics Research Institute and is one of my best colleagues in Zhengzhou University of Technology. |