The Crafts Research Based On Cambered Cam Numerical Control Grinding Technology Of Electroplated CBN Grinding Wheel

Because the rapid development of social production, science andtechnology, as well as mechanical processing industry in China, it put forwardthe ever-increasing demands for processing accuracy and production efficiencyof mechanical products. The cambered cam dividing mechanism has manyadvantages, such as high precision indexing, high positioning accuracy, welldynamic performance, big carrying capacity, high transmission speed, wellreliability, etc. It widely used in high-speed intermittently dividing mechanism,high efficient precision automatic machines, semi-automatic and automaticproduction lines. It was indispensable parts for achieving automatic and efficientproduction in packaging and pharmaceutical and other industries, and preferredcore components in automatic mechanical.The cambered cam dividing mechanism withstand friction and impact atwork. Tts work surface withstand higher stress than core part, and this stress’ssize will directly determine The cambered cam dividing mechanism’s life.Therefore, it must extend the cam life and improve the manufacturing accuracyof the cam, for improving the life of the cambered cam dividing mechanism.That conduct the high precision CNC grinding machining for cambered cam. Itwas great influence for grinding machining by grinding wheel, so the ways hasbecome a key issue that manufacture high precision, high efficiency and long lifefor grinding wheel. At present the Electroplated grinding was more superior thanbond grinding wheel in performance and machining accuracy and efficiency.First, it analysised the physical and chemical properties of the CBNabrasive, selected the appropriate size of the CBN abrasive, and treatmentedCBN abrasive before plating, and maked CBN grains satisfying variousconditions before plating. In order to improve the condition of grinding wheel, itstarted the surface topography of electroplated CBN grinding wheel, and obtained chaotic distribution of CBN abrasive on the grinding wheel surfacetopography. So using the method of magnetize CBN abrasive and addedmagnetic field in electroplating process, it maked CBN grains orderly to thedistribution on surface grinding wheel. The CBN grains exposed extent is muchhigher than normal wheel, and the machining accuracy and efficiency higher too.Second, by analyzing and studying the electroplating theory, it came out theinfluence for plating process parameters(such as PH, bath temperature, bathcomposition, current density of anode and cathode area ratio), to electroplatedCBN grinding wheel manufacturing process, choose a more suitable platingparameters for electroplated experiment, and finally developed the highlyefficient grinding rate, high processing precision electroplated CBN grindingwheel. In order to achieve requirements of electroplating process for grindingwheel base body, it needed selecting the material of grinding wheel, designinggrinding wheel structure, developing machining process route of grinding wheelbase body, machining high precision and low surface roughness, and treatmentbefore plating processing (such as the deburring, degreasing, erosion, etc.).Finally, in accordance with the requirements of the electroplatingparameters, configured the electroplating liquid and design of electroplatingapparatus. In order to achieve the CBN grains having a good position andposture on the grinding wheel surface topography, it required adding magneticfield and rotating wheel in designing electroplating apparatus, and thenelectroplating,experiment, made CBN grains orderly distribution high precisionelectroplated CBNwheel. Through selecting the grinding equipment, configuringgrinding liquid, using developed high precision-precision electroplated CBNgrinding wheel, made grinding test under different grinding parameters(e.g.,grinding wheel speed, the cutting depth, the grinding wheel feed rate, etc.), itandanalysis various grinding parameters impact for plating CBN wheel’ quality.