Research On Mechanical Energy Stored Type Powder High Velocity Compaction Industrial Prototype Machine

High velocity compaction(HVC) with advantages of short process, low cost and high density to promote the powder metallurgy industry. Foreign commercial HVC equipment costs high and its structure is complex, Its maintenance and upgrade are difficult. They bottlenecks for HVC research, development and popularization in china, Existing mechanical energy stored HVC machine meets at large the needs of the scientific research but is still unable to satisfy the industrial automation production.To promote development of HVC vigorously, A new HVC machine with industrial production capacity is key to the promotion of HVC research, it must have corresponding industrial equipment. the corresponding industrial equipment must satisfy two basic conditions. First, high compaction energy,it should compact big size big quality parts. Second, it should fulfil automation function and high production efficiency. Therefore this paper developed industrial prototype machine base on the original testing machine. This prototype enhances the practicability to industrial production prototype machine.First, characteristics of all kinds of high velocity compaction devices are analyzed comprehensively.Comprehensively describes the technological process and working principle of testing machine and analysis the advantages and disadvantages of testing machine. Aimed at the shortage of the existing testing machine, Explore the method of improve energy storage,design index for 3000 J,Proposed using the disc spring to replace the original cylindrical helical spring, To control automatically the energy storage of spring, hydraulic automatic control is proposed. According to the literature, describes the compaction energy and speed mathematical models and the equivalent mass spring processing method.Base on this, the industrial prototype machine and device process flow is designed.Second, using virtual instrument software LabVIEW and hydraulic simulation software AMESim interface, set up machine hydraulic joint simulation platform can be controlled. A co-simulation analysis platform is built with ADAMS, AMESim and LabVIEW. On the platform, the simulation process can be manipulated and the results can be displayed in real time. By this platform,simulation analysis of the energy control virtual prototype of prototype machine is carried out. verify the validity of the selection of the spring and the rationality of the hydraulic control system and feasible of the overall design scheme of prototype machine.Finally, the prototype machine is fabricated successfully and high velocity compaction experiment is conducted, iron powder compaction experiment is performed using the prototype machine, verification experiment is designed by energy control and schedule control in two groups, photoelectric sensor are used to calculated energy storage. The result can be verified with comparison between facts and touch screen operation. This experiment shows that the machine fulfil the goal of expected index effectively, improvement of the energy storage method by combination of disc spring is scientific and reasonable, and the hydraulic control scheme is reliability, It has the ability of energy control and schedule control and good forming performance.