Papers by Author: Ming Qing Wu

Abstract: The material H62, thickness 4 mm, production batch to batch general blanking pieces quality analysis, to determine the cutting scheme, the design of progressive die. From the operation and locate mode, discharge and a way, the mold frame type and accuracy in the overall design analysis, and then to die, punch and other parts design and drawing die assembly drawing.

Abstract: the development of numerical control technology changes with each new day, the article expounds the nc machine tools with complex shape parts of high precision requirements for rapid development, widely used in conventional parts processing, complex shape parts processing. Nc machine tools with the aid of microelectronics and computer technology rapid progress, is toward high precision, multi-function, high speed, high efficiency, composite processing functions, such as intelligent direction, our country numerical control system in the technology has already become more and more mature, in the major key technologies, has reached the foreign advanced level.

Abstract: The programmable controller can realize stable and reliable mechanical automation control. According to the given design requirements, sensor selection, analysis of hall sensor circuit diagram and the principle of work, Selection and analysis of the radial infrared detection switch principle; According to the process analysis control requirements, PC choice, and design the PC program.

Abstract: Connecting rod mechanism under the condition of high speed operation, organization, the elastic dynamic response of not only makes institutions of trajectory deviation, at the same time also can cause fatigue failure, the article from the perspective of more accurate nonlinear dynamic model is established, the analysis of linkage performance and characteristics of mechanical vibration, look for the causes of various kinds of vibration, and puts forward corresponding preventive measures and control strategy.

Abstract: RS-232-C and a modem together, the interface can connect all kinds of different types of micro computer, so that they can direct communication. Nowadays more popular FANUC series CNC system, and the machine is equipped with a 25 injection of RS-232-C asynchronous serial communication interface standards, connect the computer and programmer and peripherals. With MAX232 chip design of interface circuit DB9.

Abstract: Cutting force measurement system by force measurement instrument, general data collection system and PC of three parts. The size of the cutting force general use have experimental results set up experience formula. Introduces two kinds of accurate measurement method of cutting force. Choose DEWESoft data collection and analysis system software as research means of cutting force. Through technical analysis and cutting force measurement technology development direction was predicted.

Abstract: By adopting the method of block analysis,the paper analyzes and calculates the forward connecting rod combined lift mechanism by broking up it into a four-bar linkage and the plane motion of an arm triangle rigid body, constructs the kinematic equations of four-bar linkage and arm triangle and the static equations of four-bar linkage based on linear transformation and vector algebra and establishes the mathematical model of lift mechanism based on linear transformation and vector algebra.