China's first follow-up CNC crankshaft grinder put into use in September

According to reports, Beijing No. 2 Machine Tool Works Co., Ltd. has overcome the technical problems of crankshaft manufacturing. China's first self-developed and manufactured China's first double-grinding, follow-up CNC crankshaft grinder will be delivered to an engine manufacturing company in Zhejiang in September and will be equipped with a crankshaft processing line.

According to Wang Bo, general manager of “Two Machine Tools”, follow-up tracking grinding technology can make the crankshaft journal cylindricity not greater than 4 microns, that is, the “convex” height on the circular axial surface is less than the diameter of a hair wire. One-tenth; a four-cylinder crankshaft through the equipment off the line only takes an average of 3 and a half minutes, and the entire process requires only two workers to operate, saving nearly 80% of labor costs. "The rotation of the crankshaft is the power source of the engine. If the roundness and surface roughness of the crankshaft journal are poor, the car's engine will be unbalanced and the vibration and noise will be great during the driving process." explained Wang Bo, follow-up CNC Grinding technology can be more flexible to meet the characteristics of the domestic crankshaft processing of multiple varieties, multiple batches, the accuracy and indicators are higher than the traditional processing methods.

It is reported that the subject of "High-precision machining of crankshafts for automotive engine crankshafts" has obtained 3 national invention patents and one utility model patent license, including well-known Chinese car companies and crankshaft specialists including Chery, Great Wall, FAW Xiali and Tianrun crankshafts. Manufacturers will become its new users.