Centrifugal fan blade high concentricity processing improvement plan production department: Xia Shengyi centrifugal fan blade is a product with greater difficulty and higher precision in mold manufacturing, of which the two most important technologies are, the difficulty is the balance and surface finish of the product. How to ensure the balance and finish of the product?
Next, I will talk about our NJPE precision mould Co. , Ltd. 's manufacturing solutions to these two difficulties.
First of all, let me analyze the traditional processing scheme of centrifugal fan blades :(Figure 1)
: The traditional process route of the centrifugal fan blade excircle: material preparation → rough machining of excircle CNC allowance → heat treatment return to the factory → CNC refined Gong excircle alignment → cut wire cutting blade alignment, according to theory, this processing process is not a big problem, but the actual processing will have the following problems: 1.
CNC machining heat treatment materials have Tool Wear, resulting in errors in the machining of the excircle concentricity of parts. According to historical inspection data records, 0. About 02mm; 2.
Due to a certain amount of tool extrusion force and slight vibration caused by high-speed operation of the spindle in the CNC milling process, knife marks will appear on the cylindrical surface of the parts, which has a great impact on the surface roughness of the parts.
Solution: Our company optimizes and improves the new process route from the process Source: Reserve material → CNC allowance rough machining body, outer circle does not move → heat treatment return to factory → CNC fine Gong body, excircle immobility → WEDM finishing excircle and blade (Figure 2)
As shown in the figure, the outer circle of the centrifugal fan blade and the blade are all finished at one time by wire cutting, the concentricity and surface roughness of the fan blade can be guaranteed, and the processing quality is greatly improved.
The balance and surface finish of subsequent injection molding products are ensured to meet the needs of customers.
Conclusion: This improvement puts forward higher requirements for manufacturing from the point of product quality problems, forces the technological route to change, breaks the traditional inherent processing mode, and realizes the upgrading of processing precision.
With the progress of the times and the improvement of people's living standards, people's requirements for the quality of products are getting higher and higher. um-level precision is no longer a profound and fresh thing, this is the opportunity and challenge for us to create people. Promoting innovation is the embodiment of our responsibility and wisdom. As long as we have good ideas in our work, we must boldly improve them, today's quality reform is tomorrow's quality sublimation.
The products we process will more and more meet the needs of the market. NJPE-
China's leading precision mold processing factory has advanced equipment capability, innovative research and development strength, strong financial strength and strong production capacity.
Enter NJPE official website https://www .
njprecisionengineering. Com/learn more.
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