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Design Analysis And Manufacturing Process Research Of Plastic Lotion Pump

  As the core component of the hydraulic end of the plunger pump, the lotion pump body bears great pressure. Therefore, the finite element analysis of the lotion pump body is of great significance to improve the reliability and rationality of product design. Due to the particularity of the lotion pump body structure, studying its processing technology and improving processing efficiency is the key to reducing production costs and improving product competitiveness. The movement law of the plunger pump, the pulsating flow, and the pressure fluctuation caused by the pulsating flow are analyzed, and the relevant factors causing the pressure fluctuation are obtained, which provides a theoretical basis for the design and improvement of the plunger pump, and also provides a theoretical basis for the analysis of the lotion pump body. The stress state provides an important theoretical basis.

  Using the analysis of the stress distribution law and fatigue life distribution state of the lotion pump body under the maximum stress condition, the improvement measures of the lotion pump structure are proposed according to the analysis results. According to the working conditions and structural characteristics of the lotion pump body, the process route of the lotion pump body from material, blank, large-diameter hole-nesting, turning stepped holes, milling inch threads, and rolling to hydraulic self-reinforcing is given. The characteristics of the nesting drill, the structure type of workpiece rotation, and external chip removal are selected, and the related technology of the nesting drill is analyzed in detail, such as cutting power, the selection of cutting amount, cooling and chip removal, and the nesting drill are different from ordinary holes. Auxiliary devices for processing equipment.

  Tool parameters are an important factor affecting the machining efficiency and service life of the tool. Since the nesting drill works in a confined space, while satisfying the machining efficiency, the determination of chip breaking and chip removal is the key to the design of the nesting drill. The influence of the tool axial vibration on the cutting angle during the whole process is analyzed, and the theoretical basis for the influence factors of the hole axis deflection is given. The inch thread processing is carried out using milling, and the application of macro programs improves the efficiency of thread milling. To increase the strength and service life of the lotion pump body, the inner cavity is prestressed by the hydraulic self-reinforcing method.

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