Power chemical pump quality promotion - — Theory of CK series CNC and application in the production of the bearing body

Power chemical pump quality promotion - — Theory of CK series CNC application 2019 - car production in the bearing body 09 - 08 zhongtong pump industry association branch of abstract: bearing body is an important part of a pump equipment, bearing, ensure the operation of rotor balance. Our company production of various series of pump bearing body because of the particularity of its product structure, its holes, and pump cover the seam allowance has high dimensional precision and coaxial degree requirements, the traditional process is on the ordinary lathe machining inner hole and seam allowance respectively, not only difficult to ensure accuracy, and workers labor intensity, low production efficiency, directly affect the product quality and the machining cost. In order to solve the above problem, a new CK series CNC lathe, very good to solve the traditional lathe machining efficiency is low, the processing cost is high, and the problem of quality difficult to guarantee machining accuracy, and achieved good economic benefits. 【 Keywords 】 Bearing body, form tolerance, product quality, manufacturing cost, traditional craft plan and the problems existing in the traditional processing is shown in figure 1: traditional process step 1: figure 1 bearing body four jaw clamping bearing body ( The flange end) To find is appearance, processing the flange face, positioning and the cylindrical seam allowance, inner hole ( At high temperature and pump cover) , and bearing gland end surface ( Close to the flange face side) ； Step 2: bearing body back, specialized equipment and tooling, through processing the positioning of the seam allowance in step 1 and tooling positioning, and then processing inner hole ( Load bearing parts) And the end ( Close to the motor side) 。 Using this method, the intensity of labor is big, low efficiency, and have corresponding to each specification design special tooling, product processing and high cost, it is hard to guarantee the quality and the machining accuracy. Second, CK series CNC lathe processing craft plan and the overall structure of the advantages of CK series CNC lathe is shown in figure 2, figure 2 CK series CNC lathe processing scheme in place concrete and the serial number with number 2 5 plate positioning, hydraulic clamping, side two turning points and machining cylindrical flange bearing body and face, check the place such as the mouth, the other side of the lathe tool, 1 2 cutter machining end face ( Put right bearing gland) , inner hole, collar locating slot, both sides can carry on the processing at the same time. Once clamping, small labor intensity, high efficiency, product processing cost is low, and the machining accuracy can be guaranteed quality, suitable for mass production. CK series CNC lathe main working parameters are shown in table 1: three, two kinds of table 1 process scheme comparison and analysis, using traditional techniques not only the production efficiency is low, the worker labor intensity big, more major is process must be completed by the two clamping, dimensional accuracy and coaxial degree does not guarantee, directly affect the product quality and manufacturing costs. With CK series CNC lathe, instead of once clamping, boring and flange, cylindrical and inner hole, etc. , in this way, on the one hand, solves the technical problems, ensure the machining accuracy of workpiece, thus improve the quality of the products; On the other hand, due to reduced the number of workpiece clamping, which reduces the labor intensity of workers, improve the labor productivity, reduce the production cost, obviously improve the economic benefit of enterprises. Four, the last word in recent years, the company also introduced a lot of special machine tool equipment, to improve the product's core competition force in general and the sustainable development ability, chemical blocking section has also been actively to find ways to development and utilization of special function, mining equipment strong ability of high precision automatic positioning, rapid random tool change function and powerful cutting ability, to do fine and stronger, improve product quality. At present, there are IHH chemical blocking section, chemical centrifugal pump, CZ, ZA, ZE chemical process pump, AY pumps, HY chemical submerged pump and other series products, mainly used in the oil refining and chemical industry, paper making, sugar, water supply, heating, etc. Using new CK series CNC lathe, improved processing technology, part of the project, the impeller nut assembly steel wire spiral sets, using self-designed container type mechanical seal, assembling zhonggong step between monitoring detection measures. Through a series of process improvement and process innovation, chemical shielding business will give full play to the advantages of talents, equipment and other technical resources, actively to realize high quality, reduce production costs, create a good benefit for the enterprise, make the products in the market of east pump industry greater development, power chemical pump quality improvement. Figure 3 ZE standard oil chemical process pump rendering